Brazil? Ah, I get it…

I was as alarmed as I am sure all of you were to read a story in Computing telling how EMV cards could be cloned with malware. Now, as you might imagine, were this to be true it would be a matter of the highest priority in the world of card issuers. If EMV cards could be cloned (spoiler alert: they can’t) then the whole world of payment cards would collapse. Since my I spend some of my time in that world, yet hadn’t heard anything about this catastrophic turn of events, I was naturally curious as to the accuracy of the report. Delving further into the “news” story, I found the interesting qualification that the fake cards work “on virtually any Brazilian POS system”.

Brazilian POS systems? What? Ah, wait… Now I know that they are talking about. Sadly, this yonks old hack won’t work in most places any more. But it does work in a few remaining places, and Brazil is one of them. Why? Well because Latin America, an early adopter of EMV, is still heavily reliant on “static data authentication chips”, which allow the criminals exploiting them to create usable new chip cards with the data that they can extract.

Thus problem isn’t that “EMV cards” can be cloned. They can’t. The problem is the use of Static Data Authentication (SDA) in EMV. We all knew about this many years ago. In fact, although lots of people knew about this, at the time we thought it would have been irresponsible to blog about it, so I put it to one side until stimulated by an enquiry from Brazil, I finally wrote about it back in 2014, explaining in detail what the problem was, how it was fixed and why it was no longer a worry.

So, no need to panic. Having put your mind at rest (unless you are a Brazilian card issuer, in which case my colleagues at Consult Hyperion stand ready to answer your call) I cannot resist re-telling the story that explains what the “malware” does…

Many years ago, when my colleague at Consult Hyperion were testing SDA cards in the UK, we used to make our own EMV cards. To do this, we essentially we took valid card data and loaded it onto our own Java cards. These are what we in the business call “white plastic”, because they are a white plastic card with a chip on it but otherwise completely blank. Since our white plastic do-it-yourself EMV cards could not generate the correct cryptogram (because you can’t get the necessary key out of the chip on the real card, which is why you can’t make clones of EMV cards), we just set the cryptogram value to be “SDA ANTICS” or whatever (in hex). This is what the criminals referred to in the story are doing. Now, if the card issuer is checking the cryptograms properly, they will spot the invalid cryptogram and reject the transaction. But if they are not checking the cryptograms, then the transaction will go through.


You might call these cards pseudo-clones. They act like clones in that they work correctly in the terminals, but they are not real clones because they don’t have the right keys inside them. Naturally, if you make one of these pseudo-clones, you don’t want to be bothered with PIN management so you make it into what is called a “yes card” – instead of programming the chip to check that the correct PIN is entered, you programme it to respond “yes” to whatever PIN is entered.

We used these pseudo-clone cards in a number of shops in Guildford as part of our testing processes to make sure that issuers were checking the cryptograms properly. Not once did any of the Guildford shopkeepers bat an eyelid about us putting these strange blank white cards into their terminals. But I heard a different story from a Brazilian contact. He discovered that a Brazilian bank was issuing SDA cards and he wanted to find out whether the bank was actually checking cryptograms properly (they weren’t). In order to determine this he made a white plastic pseudo-clone card and went into a shop to try it out.


When he put the completely white card into the terminal, the Brazilian shopkeeper stopped him and asked him what he was doing and what this completely blank white card was, clearly suspecting some misbehaviour.

The guy, thinking quickly, told him that it was one of the new Apple credit cards!

Cool” said the shopkeeper, “How can I get one?”.

The Bitcoin rule of thirds, and what Bitcoin tells us about the future of money

In my presentation to Seamless Payments in Australia, I made reference in passing to the nature of the Bitcoin universe and how informs thinking, so I thought I’d take the time to explore that thinking in a little more detail to explain my comments.

I don’t have the exact figures to hand, but as I understand it the Bitcoin coinbase breaks down roughly into thirds…

 A third of them are lost (well, last year 23% but I think it will get worse as more people forget their passwords). This is because (like me) someone wiped their old phone wallet away and forgot to transfer it over to their new phone wallet first or because they accidentally threw away the old hard disk with all the Bitcoins on them or because the dog ate the Bicoin cold wallet or because they died or whatever. As Jonathan Levin of Chainalysis, who I regard as the “go to guy” for tracing Bitcoins, told NPR in January: “For the people that have lost their bitcoins, I say tough luck”.

(These lost Bitcoins, as my good friend Steve Bowbrick rather eloquently observed, are like treasure in sunken galleons waiting to be discovered by an intrepid explorer in the very latest kind of submarine. Which, in this instance, would be a quantum computer. It’s not only Bitcoin tucked away in these sunken galleons, by the way. There’s half a billion dollars in Ethereum stuck in just one Ethereum address: it’s the address “0”, essentially. In July 2016 someone accidentally sent ETH 1,493, currently worth more than a million dollars to that address. And thanks to the magic of the cryptography, it will stay there until the quantum submarine can uncover it.)

Another third of the Bitcoins are in the hands of the .0001%, the cryptoscenti. Bloomberg estimated that a few hundred people at most own these Bitcoins, but I’ve heard estimates that fewer than 50 people have the lion’s share. These are the people who have every interest in driving the value of Bitcoin higher so that they can cash out at a steady rate. If they dump their coins, that will drive the price down (a row has just been going on about the sale of the Mt. Gox assets for this very reason), so they need a rising market where they can convert Bitcoin to one Lambourghini at a time.

Meanwhile the other millions of Bitcoin peasants scrabble for their share of the remaining third. This distribution makes America look like a kibbutz in comparison and stands testimony to the deranged nature of utopian projections around this “digital gold” for the masses. So, to get to the question that I was asked on Sky News a few weeks ago, what does the Bitcoin market tell us about the future of money?


I’m not sure that the state of Bitcoin, or indeed the history of Bitcoin, tells us very much about the future of Bitcoin or money. It’s not anonymous enough for criminal enterprise on a large scale (and there is every evidence that criminals are turning to crypto alternatives) and it’s not functional enough to be a mass-market medium of exchange. If it is to remain a store of value beyond speculation then it must be useful for something and I’m at a loss as to what that something might be, although I’m perfectly prepared to believe that it’s because I grew up in an era of chip and PIN cards and ApplePay.

Does that mean that we should ignore it? No, of course not. There are many different ways to look at Bitcoin and it deserves study as a much as a social and political phenomenon as it does as a technological and economic one. What’s more, it does tell us something about the future. In yesterday’s Financial Times, Benoît Cœuré and Jacqueline Loh from the Bank for International Settlements (BIS) said that “while bitcoin and its cousins are something of a mirage, they might be an early sign of change, just as Palm Pilots paved the way for today’s smartphones“.

Values, Tokens, Accounts

I agree, but in a slightly different way. I see Bitcoin and its cousins not as prototypes but as a base layer — as shown in this “thinking out loud” picture that I’ve been using to explore these ideas — that will be used by some, but not by most, people to make real transactions in the future. I think most transactions will take place at the token layer, exchanging bearer assets over an efficient (no clearing or settlement) transaction layer. And most of those transactions will be pseudonymous, but some will be linked through accounts to people and organisations. 

Seamless Sydney

So what can we guess about the future of money, given what we have learned so far? Well, as I said in my Seamless Payments presentation what we may have learned is that the token economy is a more accurate pointer toward the future of money than the underlying cryptocurrencies are, because the tokens link the values managed on shared ledgers to the “real world”. There’s a logic to this model of “the blockchain” as the security infrastructure for a token economy and I really enjoyed engaging with the good people of Sydney on this view of the emerging cryptoeconomy.

Digital != crypto != virtual

According to The Daily Telegraph, the Bank of England “could green light its own Bitcoin-style digital currency”. I’m pretty sure that the Bank of England would never use “green light” as verb in any context, but putting that to one side, I was left wondering what they mean by a “Bitcoin-style” digital currency since this is not made clear in the article.  “Bitcoin-style” means what? Uncensorable? Mined in China? 7 transactions per second? High transactions fees? Using more electricity than Poland? Oh wait…

What that article actually says is that a research unit set up by the Bank was investigating the possible introduction of “a crypto-currency linked to sterling”. So not a digital currency, a crypto-currency. That presumably means that the value will be determined by mathematics, not by the Bank of England. Now it all makes sense, except that I cannot imagine why the Bank of England would want to give-up control of Sterling. Oh wait…

Further down, the article says that “a virtual currency issued by the bank” might lead to a revolutionary shake up of high street banking. Ah, now I get it. It will be a virtual currency only used in the internet tubes and not for mundane transactions. This could make sense – a sort of Bank of England “stablecoin” used to reduce friction in online transactions.


It’s all a bit confusing this future of currency stuff, so here’s a handy table I made last year to clarify the differences.

dnb slide


I suspect that the Telegraph’s confusion may have arisen because of the tendency amongst management consultants (and others) to conflate the two entirely different kinds of electronic money: a cryptocurrency and a digital currency are very different things. If Mr. Carney were genuinely suggesting that one of the scenarios under consideration by the Bank of England is that it abandons its responsibility for managing the creation of money and instead turns to a cryptocurrency, even if it is a cryptocurrency that is produced as a by-product of a double-permissionless shared ledger spawned by the Bank of England itself, then the value of that currency would not only be beyond political control it would be beyond the Bank’s control and one might imagine the Bank to be somewhat redundant in such circumstances.

On the other hand if Mr. Carney were genuinely suggesting that one of the scenarios under consideration by the Bank of England is that it creates a digital currency, then I say more power to him. A digital currency platform with right APIs in place (providing risk-free, genuinely instant and zero-cost transfers between accounts with final settlement in central bank balances) would be an amazing platform for a Digital Britain. I’d trust the Bank to maintain a Sterling reserve against the digital currency.

Right now, money reaches the public through commercial banks, a practical structure that stems from the retail banks role in providing payment services, but that privileged role is under attack. I might further observe that not only is there no fundamental economic reason why banks should be the dominant providers of payment services, there is no fundamental economic reason why they provide them at all — see, for example, Radecki, L., “Banks’ Payments-Driven Revenues” in “Federal Reserve Bank of New York Economic Policy Review”, no.62, p.53-70 (Jul. 1999) — and there are many very good reasons for separating the crucial economic function of running a payment system to support a modern economy and other banking functions that may involve systemic risk (eg, providing credit).

Marilyne Tolle made this point very clearly a couple of years ago, writing in the Bank of England’s “Bank Underground” that  “the conflation of broad and base money, and the separation of credit and money, would allow the [central bank] to control the money supply directly and independently of credit creation”. You can’t ignore that impact that such a digital currency would have on the commercial banks. Back in 2016, the management consultancy McKinsey said that global payment revenues would be $2 trillion in 2020 and that these payment revenues account for around 40% of global bank revenues! So if payments go away because the central bank provides free, instant transfers between personal accounts, then banks would have to think of something else to do instead.

There’s a good reason why this won’t happen, though, irrespective of bank executives lobbying power and that is that the central bank doesn’t want to do KYC on millions of people, run authentication platforms, perform AML checks, manage black lists and all the rest of it. So here’s a practical suggestion to suit both. Maybe, just like Bitcoin, the central bank could manage accounts that are pseudonymous. The central bank would know that account no. 123456789 belongs to a retail consumer, but not which consumer. It would know that account no. 987654321 belongs to a retailer, but not which retailer. This way the central bank could generate a dashboard of economic activity for the Chancellor to look at when he wakes up in the morning, but not routinely monitor what you or I are up to.

It would be the commercial banks who provide the services linking the pseudonymous accounts to the “real” world (and get paid for doing so). In this construct, your Sterling bank account would just be a pass-through API to a central bank digital currency account (what Marilyne calls the “CBCoin Account”) because my Barclays current account and your Lloyds current account are just skins on the Bank of England instant, free, no-risk Sterling platform (I suggest “BritCoin” as the brand) and the commercial banks can chuck away their legacy retail payment systems and focus on delivering services that add real value instead.

Commercial banks will then have an important, useful and distinct function in society as the vaults that look after identity, not money. I wasn’t the first person to say that identity is the new money, although I may have been the most persistent and annoying, but as time passes it seems to be a more and more accurate description of the future. I imagine that most forward-looking banks already have a digital identity strategy in place and are already developing new products and services to take advantage of this new era, but for those who don’t I’ll post a few ideas on the topic here.

What if S.P.E.C.T.R.E. had Spectre?

Ruh roh, as they say. Google has just published a paper outlining a serious security flaw in, to all intents and purposes, all computers. They knew about it months ago, but they’ve been waiting for Apple, Microsoft and everyone else to issue patches (which, apparently, mean an unavoidable reduction in processing speeds) before making it public. The paper sets out two “exploits” that take advantage of the flaw. These are called “Meltdown” and “Spectre”. They basically allow software to read data from other software that it’s not supposed to be able to, so that one application (let’s say, the hacker) can read data from another application (let’s say, your browser) to steal secrets.

Spectre Graphic with Text      Meltdown Graphic with Text

As you can imagine, there was a great deal of media coverage about this flaw (as there should have been – it’s a huge deal). I happened to see an comment about it on Twitter, in which someone said words to the effect of “thank goodness it was found by don’t-be-evil Google and not by the bad guys”. This is a very misplaced sentiment. In the paper, the researchers clearly state that they do not know whether these exploits have been used in real attacks. Apart from anything else, Google says that the “exploitation does not leave any traces in traditional log files”.

So what if S.P.E.C.T.R.E. actually knew about Meltdown months ago and had Spectre in the Spring? How would we know? If they are really smart, then they’ll carry on stealing our secrets but cover their tracks so that we don’t know that they know. If you see what I mean.

It might be timely to remember the story of the Zimmerman telegram, a story that is mother’s milk to security experts.

You may recall that in 1917, Britain and Germany were at war. Britain wanted the U.S. to join the effort against the Axis of Edwardian Evil. The Kaiser’s ministers came up with some interesting plans: to persuade inhabitants fo the British (and French) colonies in the Middle East to launch a jihad, for example. Another scheme was to persuade Mexico to enter the war on the German side, thus dividing the potential U.S. war effort and eventually conquering it.

(At this point I thoroughly recommend historian Barbara Tuchman’s 1966 account of the affair, “The Zimmermann Telegram”.) 

To execute this dastardly plot, the German Foreign Secretary, Arthur Zimmermann, sent a telegram to the German ambassador in Mexico, Heinrich von Eckardt. The telegram instructed the ambassador to approach the Mexican government with a proposal to form a military alliance against the United States. It promised Mexico the land acquired and paid for by the United States after the U.S.-Mexican War if they were to help Germany win the war. The German ambassador relayed the message but the Mexican president declined the offer.

Naturally, so sensitive a topic demanded an encrypted epistle and it was duly dispatched encoded using the German top secret “0075″ code. And here it is…

The Zimmermann Telegram

As it happens, “0075” was a code that the British had already cracked. Thus, the telegram was intercepted and decrypted enough to get the gist of it to the British Naval Intelligence unit, Room 40. In next to no time, the decoded dynamite was on the desk of the Foreign Secretary Arthur Balfour, the teutonic perfidy laid bare.

Now the British were faced with the same dilemma that faces S.P.E.C.T.R.E. with Spectre. How can you use intercepted information without revealing that there is a security flaw and that you have exploited it? Consider the options:

  • If the British had complained to the Germans, then the Germans would know that the British had the key to their code and they would switch to another code that the British might not be able to break for months, missing much vital military intelligence along the way. What’s more, the Americans would know that the British were tapping diplomatic traffic into the U.S.

  • If they did not reveal the contents, they might miss a the chance to bring the U.S. into the war.

The codebreaker’s clever solution was to leak the information in such a way as to make it look as if the leak had come from the Mexican telegraph company: since the German relay from Washington to Mexico used a different code, that the Americans already knew to be broken, this was entirely plausible.

If you’re wondering what happened, well despite strong anti-German (and anti-Mexican) feelings in the U.S., the telegram was believed to be a British forgery designed to bring America into the war, a theory bolstered by German and Mexican diplomats as well as the Hearst press empire. However, on March 29th, Zimmermann gave a speech confirming the text of the telegram. On April 2nd, President Wilson asked Congress to declare war on Germany, and on April 6th they complied.

The point of this story is that stupid hackers would reveal their hand, but clever hackers would not. So the fact that, according to BBC Radio 4’s “Today” programme, the UK’s National Cybersecurity Centre says there is no evidence that the flaws have been exploited, that does not reassure me! These bugs are big.

“The Meltdown fix may reduce the performance of Intel chips by as little as 5 percent or as much as 30 — but there will be some hit. Whatever it is, it’s better than the alternative. Spectre, on the other hand, is not likely to be fully fixed any time soon.”

From “Kernel panic! What are Meltdown and Spectre, the bugs affecting nearly every computer and device? | TechCrunch”.


Maybe the way forward is to assume that all machines are compromised and not fix them but instead move the security away from the processors – so going back to the idea of having a Trusted Processing Module (TPM) in every transaction, either built in to the processors (like the “Secure Enclave” in iPhones) or as a separate chip in a PC or as a smart card that is connected to the computer when you want to do something. In this, as in so many other things, Brittany Spears is a beacon to the nations. Eleven years ago I used my Britney Spears smart card (which I still have) to log on to her fan club web site securely. You can read about it here

Horizon scanning in good company

My favourite think tank, the Centre for the Study of Financial Innovation (CSFI) in London, where I am honoured to be the Technology Fellow, was asked by the law firm Dentons to put together a series of “horizon scanning” events, each looking at the major factors that will determine the shape of the financial services sector over the next 10-15 years. As part of this series they held a fintech breakfast to look at the world of tech-based challenger banks, P2P lenders, crowd-funding, new payments methodologies, AI, crypto-currencies, blockchain and so forth. I was flattered to be invited to take part, along with Clara Durodié (founder and managing partner of AI outfit Cognitive Finance Group) and Nick Ogden (the founder of ClearBank and, some years ago, the founder of WorldPay).

(In my opinion, Nick is at the heart of the current fintech revolution, the UK-centric whirlwind around open banking and the “platformisation” of financial services, whereas Clara is at the heart of the current regtech revolution, using AI to change the markets themselves. We may be a long way from Terminators and HAL 9000, but the massive AI investments pouring into financial services around the world mean that the technology is going to change the sector soon.)

For what it’s worth, my three main horizon-scanning observations were that:

  1. Open Banking starts in January and I remain convinced it will be far more disruptive than many people think. It is not far-fetched, as Wired magazine observed, that banks might go under because of this. At the risk of sounding like a broken record, this about identity, trust and reputation not money. Obviously, I left it to Nick to talk turkey on this one. He set up Clear Bank to provide building societies, credit unions, other banks and fintech companies with access to all the major payment and card schemes, including Faster Payments and is obviously pretty convinced that open banking is going to provide space for innovation.

  2. AI is an event horizon. In that 10-15 year timescale it is clearly the most important technological trend of the generation and it is impossible to see what is the other side of it. Obviously, I left it to Clara to run a few things up the flagpole here. What I will note is that analysts at Forrester have predicted that quarter of financial sector jobs will be “impacted” by AI before 2020 and John Cryan, the Deutsche Bank CEO, was quoted in the Financial Times in September saying that the bank is going to shift from employing people to act like robots to employing robots to act like people. The impact on employment is obvious, but we cannot hold back the tide so we must take advantage of the changes and begin to explore for new opportunities that can be built around a more productive financial services sector

  3. I wanted to bring something from left field to the discussion, so in addition to these two obvious key trends I spoke about the token and Initial Coin Offering (ICO) marketplace. I think that a regulated and organised token marketplace will be one of the big financial services business moves in 2018 and I’m pretty sure that it will be successful (for a variety of reasons to do with liquidity and the elimination of clearing and settlement).

Nick, Clara and I put forward our thoughts about the longer term. During the discussion that followed, there were a number of questions and comments about the impact of AI on the financial services sector. I think this is in many ways quite unpredictable not only because of the “event horizon” but because of the impending interaction. People tend to think in terms of robo-advisers and chat interfaces, focusing on the use of AI by financial institutions to either cut costs or deliver new services (some of which, of course, we can’t imagine). But, to paraphrase Fred Schwed’s 1940s financial services classic… where are the customers’ bots?

If you think about it, however, the customers will have access to AI as well. The customers smartphones will connect them, permanently, to an intelligence far greater than their own. Thus, if a bank is trying to sell me a mortgage or a credit card or whatever, it’s wasting its time showing me incomprehensible advertisements involving astronauts riding horses through fields of purple daffodils and people singing.

My AI is going to negotiate with the AI of the regulated financial institutions in order to obtain the best product for me. Since I’m not smart enough to choose the right credit card, pension or car loan then clearly I’m going to want my own giant killer robot to take care of things. But which robot? Should I choose the Saga robots or the Virgin Money robots or the best performing robot over the past 12 months or the Google self-taught super intelligent robot that is also the world Go champion?

How the banks’ robots will interact with the customers’ robots is at the same time fascinating and frightening. I’m not sure I really want to be in the loop when the discussion of a pension plan or insurance project is taking place, but I do want some sort of confidence that there’s a regulator in the loop and that should push come to shove, my robot will be out to explain why it made the decisions it did. All in all, what I can see on the horizon is giving my AI access to my account through open banking and then letting it decide which ICO is to invest in.

An island of artificial intelligence

As I’ve written many times (e.g., here), it is difficult to overestimate the impact of artificial intelligence (AI) on the financial services industry. As Wired magazine said, “it is no surprise that AI tops the list of potentially disruptive technologies”. With Forrester further forecasting that a quarter of financial sector jobs will be “impacted” by AI before 2020, there’s an urgent need for the island begin to think about the next generation of financial services and begin to formulate a realistic strategy not only to copy with the changes but to exploit them. It is because the need is so urgent that I was delighted to be asked to give a keynote at the Cognitive Finance AI Retreat in September (Which began with a beach barbecue, something I recommend to conference producers everywhere.)

Beach BBQ

A beach barbecue is always a good idea at a conference.

The event was put together by my good friends at Cognitive Finance working with Digital Jersey (where I am advisor to the board) and they did a great job of bringing together a spectrum of both subject matter experts and informed commentators to cover a wide variety of issues and provide a great platform for learning.

On the first day of the event, political economist Will Hutton emphasised that financial services will be at the “cutting edge” of the big data revolution, pointing out that not only does the sector hold highly personal, highly valuable data about individuals, but that it has more complex oversight requirements than most other sectors.

Clara Durodie, CEO of Cognitive Finance Group kicked off the event by talking about the potential for AI to help to manage the colossal flows of data that characterise the financial sector today and I think she was right to highlight that the use of the technologies presents tremendous opportunities here.

In his superb “Radical Technologies, Adam Greenfield wrote of the advance of automation that many of us (me included, by the way) cling to the hope that “there are some creative tasks that computers will simply never be able to peform”. I have no evidence that financial services regulation will be one of those tasks, so in my talk I suggested AI will be the most important “regtech” of all and made a few suggestions as to how regulators can plan to use the technology to create a better (that is faster, cheaper and more transparent) financial services sector. The strategic core of my suggestion was that jurisdictional competition to create a more cost-effective financial services market might be a competition that Jersey could do well in.

AI as Regtech

Regulation, however, was only one the topics discussed in a fascinating couple of days of talks, discussions and case studies. The surprise for me was that there was a lot of discussion about ethics, and how to incorporate ethics into the decision-making processes of AI systems so that they can be accountable. I hadn’t spent too much time thinking about this before, but I was certainly left with the impression that this might be one of the more difficult problems to address and talking with very well-informed presenters. Listening to experts such as Dr. Michael AikenheadKay Firth-ButterfieldDr. Sabine Dembrowski, Andrew Davies and many other leading names in finance and AI left me energised with the  possibilities and intrigued by the problems.

AI is an event horizon for the financial services industry. With our current knowledge, we simply cannot see (or perhaps even imagine) the other side of the introduction of true AI into our business. But we can see that our traditional “laws” of cost-benefit analysis, compliance and competition will not hold in that new financial services space, which is why it is important to start thinking about what the new “laws” might be and how the financial services can take advantage of them.

The smart money

Writing in the Bank of England’s “Bank Underground” blog, Simon Scorer from the Digital Currencies Division makes a number of very interesting points about the requirement for some form of Central Bank Digital Currency (CBDC). He remarks on the transition from dumb money to smart money, and the consequent potential for the implementation of digital fiat to become a platform for innovation (something I strongly agree with), saying that:

Other possible areas of innovation relate to the potential programmability of payments; for instance, it might be possible to automate some tax payments (e.g. when buying a coffee, the net amount could be paid directly to the coffee shop, with a 20% VAT payment routed directly to HMRC), or parents may be able to set limits on their children’s spending or restrict them to trusted stores or websites.

From Beyond blockchain: what are the technology requirements for a Central Bank Digital Currency? – Bank Underground

If digital fiat were to be managed via some form of shared ledger, then Simon’s insight here suggests that it is not the shared ledger but the shared ledger applications (what some people still, annoyingly, insist on calling “smart contracts”) that will become the nexus for radical innovation. They bring intelligence to money, and some people think this is more revolutionary than it first appears. One such person is Eric Lonergan. Eric is someone I always take seriously. He’s a hedge fund manager, economist and writer. He wrote a great book about money, called Money, and he is a source of clear thinking on many issues around this central topic of shared interest. Here’s what he had to say about Bitcoin recently.

The most significant innovation in Bitcoin is not blockchain, nor the fact that it is a non-state-backed electronic currency. It is truly ground-breaking because it is the first ‘intelligent’ money. An ‘intelligent money’ is one which self-regulates.

From Intelligent money & valuing Bitcoin – Philosophy of Money

Quite, but this form of intelligence is only one kind and the Bitcoin self-regulation is only one kind of self-regulation. There are some truly surprising possibilities once you add general-purpose programmability. I have bored people to tears repeatedly with my standard four hour lecture about why the incorrectly labelled “smart contracts” will be the source of real innovation in the world of cryptocurrency and, indeed, why one of the first uses of those smart contracts (ICOs and tokens) will be much more important to the world of financial services than, say, Bitcoin. But that kind of self-regulation may not be the only thing that intelligent money does. Eric goes on to say that:

‘Intelligence’ could also embed social goals – for example the currency could self-regulate the activities for which it is used, perhaps even rewarding or punishing activities contingent on their social impact. In extremis, I imagine we will have a currency which is fully intelligent, gathers data and evolves its own rules of distribution and growth. .

As you will deduce from the subtitle of my recent book “Before Babylon, Beyond Bitcoin – From money that we understand to money that understand us” I agree. What’s more, as Eric says, “my sense is that it [intelligent money] is inevitable – indeed it could be the basis of an edge for digital currency over existing state-backed money”. That’s a pretty interesting statement from someone who is a thorough student of money. If he is right, and money becomes more closely connected with the social goals of the communities that it serves, then the future of money will look very different from both the Washington Consensus and Star Trek (that is, there won’t be a “galactic credit” or whatever, but very many different kinds of money).

Estonia is a real place

My little corner of the internet seems awash with tales of a mythical utopia that goes by the name of Estonia. Since my little corner is the digital identity corner, I’ve been hearing about digital identity in Estonia more and more. At meetings and conferences, on social media and in conversation, I hear people talking about the Estonian national identity scheme that uses a blockchain. The Harvard Business Review, for example, tells us that “since 2007 Estonia has been operating a universal national digital identity scheme using blockchain”. This sort of thing crops up on Twitter from time to time. I’m not sure if some of the people tweeting about the Estonian national digital identity blockchain know that Estonia is actually a real place and that some people (e.g., me) have been there. In fact, here is a picture of me in Tallin to prove it.

 Me in Tallin

The Estonian national digital ID scheme launched in 2002. A decade ago a colleague of mine at Consult Hyperion, Margaret Ford, interviewed Mart Parve from the Estonian “Look@World” Foundation in the long standing “Tomorrow’s Transactions” podcast series (available here). Mart was responsible for using the smart ID service (both online and offline) to help Estonia develop its e-society. If you listen carefully to them talking, you will notice that they never mention the blockchain, which is unsurprising since Satoshi’s Nakamoto’s paper on the subject was not published until more than a year later, in October 2008.

The strangeness of the obsession with Estonia in blockchain circles began to bother me after I was invited along to a blockchain breakfast (seriously) at the House of Lords last year. The invitation came because I had been asked to contribute to the Parliamentary Office of Science and Technology (POST) work on distributed ledger and the purpose of the breakfast was to discuss this report. The breakfast was hosted by Stephen Metcalfe MP, chair of the Science and Technology Committee. Sir Mark Walport, the Government’s Chief Scientific Adviser (GCSA), opened the proceedings. Sir Mark had authored the Government Office for Science report on “Distributed Ledger Technology: beyond blockchain” earlier in the year. In it, he focused on a particular kind of distributed ledger, the Bitcoin blockchain, and attempted to explain it to the general reader and then explore some of the potential uses.

(From here on I insist to sticking to the term that Richard Brown of R3 and I started using a couple of years ago “shared ledger technology” (SLT) as the general description because I feel that the fact that multiple organisations share the ledger is more important than its architecture.)

Personally, I found the report slightly confusing because it was jumping between ledgers, blockchains, the bitcoin blockchain and bitcoin almost on a paragraph by paragraph basis. What’s more, and I realise that I read the document from a very technical perspective and that I may see some of these things therefore in the wrong context, I think the report might have benefited from some more description of shared ledgers, and the reasons why Moore’s Law and falling communications costs have made the core idea of everyone storing every transaction a plausible architecture. Here’s the way that my colleagues at Consult Hyperion and I started to think about the ledger a couple of years ago, the “4Cs” model that has worked rather well.

Consensus Computer Model

I prefer to use this layered approach to explain the key components of a shared ledger and then develop ideas around different choices in those layers. Different choices in consensus technology, for example, lead to a variety of different possibilities for implementing a shared ledger. In order to help categorise these possibilities, and narrow them down to make useful discussions between the strategists and technologists, I use the taxonomy that Consult Hyperion developed to distinguish between different kinds of public and private ledgers. Rather flatteringly, Sir Mark used a simplified version of the this model on page 19 of his report.

When the report came out I said that it might be considered reckless to disagree with the GCSA, but I just did not (and do not) see cryptocurrency as a sensible government option for digital currency. Anyway putting my nerdy criticisms to one side, Sir Mark’s conclusions (which were essentially that the technology is worth exploring in government contexts) were surely correct. He said that permissioned ledgers (i.e., not the Bitcoin blockchain) are appealing for government applications and I’m sure he was right about this, although I remain sceptical about some of the suggested government uses that are based on costs or efficiency. I think that his suggestions around applications that focus on transparency are the more interesting areas to explore in the short term and they would be my focus if I were looking to start exploratory or pilot projects in the field. I share the Open Data Institute’s view on this, which is that blockchains could be used to build confidence in government services, through public auditability.

House of Blockchain

When it came time for my contribution, by the way, I said that it wasn’t at all clear to me that it was accurate to describe Bitcoin as a decentralised system since almost all of the hashing power resides with a very small number of unaccountable mining pools based in China but, more importantly that

  1. It seems to me that many of the efforts to move shared ledgers into the marketplace have concentrated on shaping shared ledgers to emulate existing solutions in the hope that SLTs will be faster, higher or stronger. These are all unproven assertions. It is possible that a shared ledger replacement for RTGS might be cheaper, or more resilient or more functional that the currency centralised solution, but who knows?

  2. The transparency of the shared ledger, the aspect that most doesn’t work for current solutions in current markets, may well turn out to be the most important characteristic because it allows for ambient accountability and therefore opens up the potential for new kinds of markets that are far less costly and complex to regulate, manage, inspect and audit. This is the “shared ledger as regtech not fintech meme” that I am rather fond of.

  3. Just as the invention of double-entry bookkeeping allowed for the creation of new kinds of enterprise, so it seems to me that the shared ledger will similarly lead to new kinds of enterprise that use the shared ledger application (the SLAPP) as the engine of progress and the focus of innovation. I assume that there are kids in basements experimenting with SLAPPs right now and that this is where the breakthrough use case will come from. As I said some time ago in a discussion about shared ledgers for land registry, turning the ledger into a platform may be the most important reason for shifting to this implementation.

At the breakfast, Sir Mark said that the goal of the POST reports is to demystify technology for policy makers although I have to report that in his closing remarks he said that we had not been entirely successful in this enterprise and I fully concur with his opinion. That’s not why I’m talking about it breakfast at the House of Lords here though. Back to Estonia! At one point, the breakfast discussion moved on to the Estonian electronic identity system. At this point I expressed some scepticism as to whether the Estonian electronic identity system was on a blockchain. The conversation continued on the basis that it was. Then to my shame I lost it and began babbling “it’s not a blockchain” until the chairman, in an appropriate, gentlemanly and parliamentary, told me to shut up.

The point that I was trying to make was that the Estonian ID scheme, launched in 2002, has nothing to do with shared ledgers or mutual distributed ledgers or blockchains. As it happens, a some time after my breakfast with their lordships, I had another breakfast, this time with the new CIO of Estonia, Siim Sikkut


I asked Siim where this “Estonian blockchain ID” myth came from, since I find it absolutely baffling that this urban legend has obtained such traction.  He said that it might be something to do with people misunderstanding the use of hashes to protect the integrity of data in the Estonian system. Aha! Then I remembered something… More than decade ago I edited the book “Digital Identity Management” and Taarvi Martens (one of the architects of the Estonian scheme) was kind enough submit a case study for it. Here is an extract from that very case study:

Long-time validity of these [digitally-signed] documents is secured by logging of issued validity confirmations by the Validation Authority. This log is cryptographically secured by one-way hash-function and newspaper-publication to prevent back-dating and carefully backed up to preserve digital history of mankind.

Well, there we have it. It looks as if the mention of the record of document hashes has triggered an inappropriate correlation amongst observers and, as Siim observed, it may indeed be the origin of the fake news about Estonia’s non-existent digital identity blockchain.

(This is a revised and edited version of post that first appeared on Consult Hyperion’s “Tomorrow’s Transactions” blog in March 2017.)

Back to the future of Bitcoin

I was very excited to discover via the interweb tubes that Bitcoin is now going into geostationary orbit. In the near future, Bitcoins will be dropping as a gentle rain from heaven. Well, sort of.

Blockstream Satellite is the world’s first service that broadcasts real-time Bitcoin transactions and blocks from a group of satellites in space.

From Blockstream – Announcing Blockstream Satellite

You cannot imagine the nostalgia this story generated for me because, astonishing as it may now seem, the first ‘fintech’ project that I ever worked on involved using satellites to transit financial data and the first book chapter that I ever wrote was about the use of satellite data for business.

Settle down youngsters, and I’ll tell you the tale…

Cast your mind back to 1982. Those interweb tubes are a distant dream. Getting data from place to place is a major effort. In a far away place (Indonesia) a group of talented 10x prima donna programmers are writing software to run on the world’s first regional satellite data system, the Palapa-B1 service (a Hughes HS376, for the technical, with 24 C-band transponders). In the great city of Bandung, one of these dashing young software engineers — me — was initially tasked with writing the (and here’s one for the teenagers) X.28 code and then the X.25 code to allow (amongst other things) bank terminals and other devices to connect via this new satellite network to allow communications between bank branches on far flung islands throughout the Indonesian archipelago and bank offices in Jakarta and elsewhere. You couldn’t buy communications software for the processors we were using. You had to write it from scratch. If you tell the young people of today that, they won’t believe you.

Indo83 3

We were working at a telecoms supplier’s site in Bandung. I know it doesn’t look much from the outside.

A Japanese team were building the baseband modems and implementing the Aloha link protocol that had originally been invented for Alohanet. This gave me the assembly language primitives to work with to implement the CCITT protocols on top. X.28, as if you need any reminding, was the protocol for character input/output (used to connect terminals across a network to mainframes) and X.25 was the packet-switching protocol for interconnecting computers. I still think of terminals at DTEs (Data Terminating Equipment) and I still think of network connections as DCEs (Data Circuit Terminating Equipment). All of these quaint terms vanished from the pages of history about a week after TCP/IP was invented.


As you can see, inside we had access to many modern facilities.

Implementing X.28 meant that staff could log on to bank mainframes using terminals in the branches. Implementing X.25 meant that remote minicomputers could interconnect. Getting the code to work, and getting it to work quickly enough, and getting it to work in the limited memory available was a fantastic education. I loved my time as C ninja, interfacing with what was then leading-edge communications hardware to deliver data services to real users.

Indo83 2

Here I am making a few small adjustments to the communications processors boards.

It was here I learned all my UNIX tricks and C programming stunts. Those were the days when if you didn’t like the way that the team wrote code you could quickly knock up a parser to force them into line (which one of my colleagues did, using YACC), when you had to pretend to the system administrator that you didn’t have root access (which we all did) and when the disk packs held 5Mb so you had to be very careful with the space available *wipes away a tear*.

Indo83 1

As you can see, the team really appreciated my mad programming skills and their contribution to the great success of the project.

In the later 1980s and very early 1990s, I enjoyed working on a wide variety of projects around satellite data communications. I worked on technical architectures, system designs and even on regulation in a team with the now-infamous Vicky Pryce (who was then chief economist at KPMG, and who I remember as a very impressive and really clever, but also really nice person). The very first conference paper that I ever wrote was on the use of satellite data broadcasting to deliver stock exchange data to market participants and I spent happy days at Telekurs, Dow Jones Telerate, the London Stock Exchange and other places working on link budgets, low-noise blocks and forward error correcting codes (this is where I learned about convolutional coding and Viterbi decoders. One of the most interesting areas I worked in was the use of Vertical Blanking Interval (VBI) data services embedded in analogue television transmissions and the potential (abandoned) use of data space in digital television transmissions for value-added (largely financial) services.

Books about satellite communications

A few years later, I worked on a similar system using Very Small Aperture (VSAT) terminals in K-band (too much information, ed.) for a US telecommunications provider, on one of Consult Hyperion’s first US projects. In those still pre-internet days, if you wanted to get data from a branch office back to HQ reasonably quickly you had to pay for a leased data line from the phone company, which was very expensive. Putting a satellite terminal on your roof was a cheaper alternative and as the frequencies went up from C- to Ku-based, so the dish sizes and costs came down. The cost of installing and maintaining a six foot dish compared very favourably with the costs of alternatives, until the internet and mobile phones came along and spoiled all the fun.

Ah, the good old days.

Banks and ice

Some years ago, I happened to be reading William Bernstein’s A Splendid Exchange: How Trade Shaped the World when I was mildly startled to see a reference to the magnitude of America’s 19th century ice trade. Startled because I’d never heard of this trade despite that fact that ice was America’s second largest export tonnage (second only to King Cotton) at the time of the Civil War! I immediately resolved to learn more and a few moments of augmented intelligence (ie, Google) threw up the name of Frederic Tudor, the “Ice King” who invented the industry. From there it was a quick jump to Gavin Weightman’s The Frozen Water Trade, one of my favourite books.

The story of Frederic Tudor (perhaps “yarn” might be a better description) ranges over most of the seven seas, taking in privateers, shipwrecks, invention, speculation, enterprise and vision on the way. Tudor had an idea and spent years, in a truly American fashion, pursuing it until he had created an entirely new market and had satisfied it through an entirely new industry. When he shipped his first cargo of New England ice down to Martinique in 1806, he thought he would have a sure-fire success. But the inhabitants had no idea what to do with it: if you’ve never seen ice, would you buy some? Eventually he found using it to make ice cream a moderate economic success and was encouraged to continue. A decade later, his breakthrough came when he began shipping not to the Caribbean but to Charleston, Savannah and New Orleans and the business began taking off.

At the same time, an ice ecosystem began to develop. Downstream, the waste water coming off of the melting ice was sold as a cold draught rather than poured down the drain. Upstream, the demand for sawdust (used to insulate the ice cargos) from the Maine timber industry (previously a nuisance) generated more wealth. New technology was applied to cutting, storing and hauling the ice.

Frederic’s marketing strategy was dynamite. He created an insatiable demand for two main products: ice cream and cold drinks. When opening up a new town, he would provide free ice to bartenders knowing that customers would never go back to warm drinks once they’d tried a mint julip or an iced tea. It seemed to me slightly reminiscent of the bottled water industry today: create a demand, satisfy it and the use brand to drive up the price. Indeed, Weightman notes that the only difference between “Wenham Lake Ice” (one of the main brands of the time) and other ice was purely marketing.

Tudor was a ruthless businessman, seeing off competitors by lowering the price of his ice to ruin them, but not a perfect one. Some of his enterprises outside ice went well (graphite mining and property) and some not so well (he lost a fortune speculating on coffee futures). In any case, by 1849 the ice trade he had created was going so well that he ran out of ice in Boston and had to send a ship and a crew north to cut chunks off of icebergs!

“To speak literally, a hundred Irishmen, with Yankee overseers, came from Cambridge every day to get out the ice. They divided it into cakes by methods too well known to require description…” — Henry David Thoreau, from “The Pond in Winter,” Walden

From The ice men come to Walden Pond (Walden 186) | The Curious People

By the time Thoreau was moaning about the ice trade disturbing his peace on Walden Pond, Tudor was shipping ice to Calcutta (where the grateful British Raj coined him a medal), round the Cape to San Francisco and even to Australia. In America, ice was no longer a luxury item but an essential comfort.

Naturally, as I followed this wonderful tale, I couldn’t help but try and extract key messages around the intersection between economics and technology. In this field, there is a definite paradox around Frederic and I find it fascinating. Frederic was not a luddite by any means and appears excited by the new inventions of the time. In 1830, he predicted that “steam will soon take the place of horses” and went on to say that “the times are surcharged with novel inventions and improvements of all kinds… steam seems now the ordinary power: in all probability some other and more convenient one will be discovered”. And, of course, it was.

Yet as Weightman notes in passing, it never seems to have occurred to Frederic that someone might “undermine his ice trade by manufacturing ice or making an artificial refrigerator”. Perhaps it is some kind of innovator’s curse, to imagine change in all businesses except the one they have created: it’s why Bill Gates didn’t invent Google and why Akio Moirta didn’t invent the iPod.

As it turned out, when artificial refrigerators did arrive, they at first bolstered the trade by providing an inexhaustible, year-round supply of clean ice for shipping through the existing supply chain before, in time, they destroyed the trade by decentralising ice making to the point of consumption. Destroyed the trade so thoroughly, in fact, that few people remember that it ever existed. The market that Frederic’s genius created is still with us, but the industry he created to service it has melted away.

This is how I see the banking sector. As the former CEO of Barlcays, Anthony Jenkins, said (I paraphrase), banks digitised banking rather than make it digital and are facing the “Uber moments” to come. The digital financial services revolution has barely begun. Our cool new finance stuff is running on some very old rails.

The banks have indeed spotted the invention of refrigeration and they have taken the first primitive refrigerators (e.g., the blockchain) and are using them to make blocks of ice that are then packed in sawdust and sent off in sailing ships just as they were before (by which I, of course, mean the legacy information technology infrastructure). Meanwhile, other people (the fintechs, the internet giants, new businesses yet to be born) are looking at decentralisation and are shipping the fridges rather than the ice. They are looking at using blockchain technologies to create new and decentralised markets founded on translucent transactions and ambient accountability.

I hope this isn’t too clumsy a metaphor for taking a look at the 21st century technologies that are already upon us (ranging from biometrics and the blockchain to artificial intelligence and the internet of things) to try and see what they will really do to the financial services sector in general and the banking industry in particular. I think I have a fairly structured way of thinking through these issues and, more importantly, I think I have an idea for a new book…