I began exploring the topic of financial privacy and payment anonymity in the early days of this blog. Over the past decade, my views have shifted significantly—here's how and why.
Rereading my earliest mentions of financial privacy, they now seem a bit... idealistic? extreme? For instance, in my 2014 post entitled Fedcoin, a central-bank issued digital currency, I suggested that the product should be 100% anonymous, like coins and banknotes.
Criminals would undoubtedly exploit unlimited anonymous digital currency, as I acknowledged in a 2018 article entitled Anonymous digital cash. But I figured that the bad guys would find their own ways to transact anyways, say through their own mafia-created payments system, so central banks may as well go forward with anonymous digital currency anyways, the benefits to civil society of unlimited e-cash ultimately outweighing the cost.
I wouldn't support these same ideas today, or would at least modify them, as I'll show further down.
But idealistic and extreme aren't quite the right words. I think that I was right, at least when looking at things from a certain vantage point, but it was still early in my blogging career and I hadn't yet explored other vantage points
To be clear, financial privacy, or the ability to make transactions anonymously or near-anonymously, isn't just something that criminals require. It's crucial for regular folks, too, and in my earlier blog posts I spent a lot of time detailing why this is so. After a cashier dropped my card behind the counter (and potentially skimmed it?), I wrote that cash provides buyers with a "shield from everyone else involved in a transaction" in my 2016 post In praise of anonymous money. And I still agree with that, and to this day always pay with cash when the store I'm at feels a bit sketchy. I worry that this shield will disappear as cash usage continues to decline.
Civil society's need for private transactions isn't just a weird fringe view. In a 2018 entitled Money is privacy, I described the work being done on privacy and payments by Federal Reserve researchers Charles Kahn, James McAndrews, and William Roberds. Licit transactions can unintentionally evolve into a long-term relationship, they write, including clawbacks, extraterritorial rulings, and new forms of product liability. To boot, personal information linked to digital transactions can be stolen in data breaches.
According to the three Fed researchers, the ability to transact anonymously converts a potentially thorny transaction into a one-and-done relationship. Licit payments that might have otherwise been deemed too dangerous can proceed, the extra trade making the world better off. (See also my 2020 article Central banks are privacy providers of last resort.)
As for crypto, I've described blockchains as dystopian hellscapes or panopticons, because every single transaction is mapped out for all to see. That makes blockchains just awful places to carry out conventional business. Firms require a degree of secrecy in order to hide their corporate strategies and tactics from competitors—but the medium doesn't permit secrets. Blockchains need more privacy. (See my 2022 post DeFi needs more secrecy, but not too much secrecy, and the right sort of secrecy).
So what changed?
Starting in 2018, I focused more on studying fraud, including ransomware, tax evasion, and gift card schemes. I found gift card fraud particularly intriguing: semi-anonymous payment systems linked to Google Play and Apple iTunes have enabled an entire industry of scammers, including IRS and tech support fraudsters, to launder stolen funds. Network operators like Google and Apple, as well as major retailers such as Target and Walmart, quietly profit from all of this fraud. (See Gift Cards: When Good Products Do Bad Things [2021] and In-game virtual items as a form of criminal money [2019].)
Which led me to my next big truth: if privacy is crucial, so is the necessity of criminalizing money laundering.
Money launderers are the financial intermediaries who, knowing full well that a customer's funds are dirty, conduct transactions with them anyways, in a way designed to disguise its source.
The willful laundering of a criminal's money is an extension of the original crime, making a launderer just as morally and ethically culpable as the criminal they are helping. By facilitating the final release of illicit funds, the money launderer enables the crime to fulfill its purpose, completing the damage caused by the initial offense—be it theft, extortion, or human smuggling. This is why the launderer's actions deserve to be criminalized. (See A short and lukewarm defence of anti-money laundering standards from 2021).
The crime of money laundering bears a striking resemblance to the centuries-old crime of fencing—the art of accepting and redistributing stolen property. (See my 2024 post "I didn't launder the cash, your honor. The robot did") In earlier times, thieves were responsible for reselling their stolen goods themselves. However, by the 17th century, this task was often outsourced to specialized intermediaries, or 'fences.' At first, there was no legal term for this crime, but in 1692, England formally criminalized fencing, and deservedly so.
Thinking more about the crime of money laundering led me to become more critical of stablecoins, for instance. From 2014-2018 my articles on stablecoins were mostly neutral or positive, but now my posts focus on the fact that stablecoin issuers, by turning a blind eye to those using their platform, have allowed themselves to become launderers for all types of criminals. (Among others, see my 2019 post From unknown wallet to unknown wallet and my 2023 post Why do sanctioned entities use Tether?)
At this point, you may be able to see my conundrum.
If, like fencing, money laundering should be criminalized (and indeed it is illegal in most parts of the world), that collides with my prior belief in the importance of financial privacy. After all, the only way for a banker, money transfer agent, or stablecoin issuer to be safe from a money laundering charge is to show that they did a good faith job collecting enough personal information to ensure that they weren't dealing with criminals. And giving up personal information is necessarily privacy-reducing.
One way to resolve my conundrum would have been to pick a side and advocate for it, but I think both sides are important, so I've generally tried to find a compromise. Most of my writing on the topic over the last five or six years has been trying to wrestle with where to draw the line between financial privacy and the crime of money laundering.
My compromise position has generally advocated a privacy safe harbour for small day-to-day transactions. But anything above a certain monetary ceiling needs to be identified in order to avoid a money laundering charge.
Here are some examples of my often clumsy attempts to balance the two ideals:
- The purchasing power of the $100 note has been eaten away by inflation. Let's improve basic payments anonymity by re-introducing $500 notes, but burden those notes with a tax in order to make up for the benefits accruing to criminals. See my posts A tax, not a ban, on high denomination banknotes and Pricing the anonymity of banknotes from 2018, and Supernotes from 2019.
- If we’re going to issue a central bank digital currency, it shouldn’t be fully anonymous or fully surveilled. Instead, it should provide a limited, rationed degree of anonymity. See The dematerialization of cash (2017) and Anonymity vouchers (2019).
- Below a certain monetary threshold, cash transaction reports (CTRs) and suspicious activity. reports (SARs) needn't be filed, which means small transactions enjoy a degree of privacy. However, these thresholds are not adjusted for inflation. To preserve the small privacy safe harbour, those thresholds should rise over time in-step with the general price level. New financial products should enjoy the same shield. (See my 2020 article Why Aren’t Anti-Money-Laundering Regulations Adjusted for Inflation? and my 2023 posts In praise of anti-money laundering thresholds and Even crypto mixing deserves a threshold).
- While the crypto privacy bot Tornado Cash makes blockchain transactions private, it is also a money laundering machine, a point I made multiple times beginning in 2021 with Tornado Cash and money laundering. The proper way to build a privacy bot is to take a balanced approach that begins with screening out bad actors, and only then provides privacy, thus ensuring that the tool isn't used for laundering money. (I explore this balanced approach in my 2022 post Crypto’s privacy/commingling dilemma , my 2024 post "I didn't launder the cash, your honor. The robot did" and my 2023 article Thoughts on Privacy Pools and the law.)
Balancing the two ideals rather than taking an either/or approach has led me to adopt a more comparative approach to thinking about financial privacy. I've begun to analyze cross-country differences in the intensity of financial surveillance as conducted by national financial intelligence units. Canada, for instance, has chosen a balancing point that is far more in favor of financial privacy (and accordingly more accepting of money laundering) than the U.S. has, as illustrated in my 2024 post Your finances are being snooped on. Here's how.
So that's where I've landed after ten years of writing about privacy. Hard-core privacy advocates and civil libertarians would probably describe me as a sell-out or a wishy-washy centrist because I'm willing to compromise on financial privacy. Fair enough. But I do wonder how many privacy advocates would go so far as to call for an all-out decriminalization of money laundering. Doing so would maximize privacy, but surely no privacy advocate thinks that bankers who clean money for the mob should by allowed to walk free. We are probably closer than they think.
I look forward to seeing how my opinions evolve over the next ten years, as I'm sure they will. Thoughts or comments?
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