Alexey Pertsev, the developer behind the cryptocurrency mixing protocol Tornado Cash, has been convicted of money laundering, raising significant concerns among open source code developers. The verdict, delivered by a Dutch judge at the 's-Hertogenbosch Court of Appeal on May 14, sentenced Pertsev to five years and four months in prison for allegedly laundering $1.2 billion worth of illicit assets through the platform.
Despite Tornado Cash being a non-custodial cryptocurrency mixing protocol, where funds passing through are neither held nor controlled by the platform, Pertsev's lack of control over the funds did not prevent his conviction. His legal troubles began in August 2022 when he was initially detained in the Netherlands, shortly after Tornado Cash was blacklisted by the U.S. government. Pertsev's legal team now has 14 days to appeal the ruling, which stems from an indictment suggesting Pertsev should have been suspicious of the illegal origins of some transactions on the platform he co-developed.
It's crucial to note that there's currently no evidence indicating Pertsev actively facilitated criminal transactions beyond his contribution to the open source code of Tornado Cash. However, the case has ignited widespread unease among open source code developers due to the potential precedent it sets for holding developers accountable for how criminals utilize their code.
During Pertsev's previous trial in March, prosecutors argued that he hadn't implemented sufficient safeguards to prevent illegal money laundering through Tornado Cash. Authorities allege that high-profile hackers, including North Korea's Lazarus Group, utilized the protocol. The Lazarus Group is suspected of orchestrating the $625 million hack of Axie Infinity’s Ronin Bridge in March 2022 and subsequently laundering over $455 million through Tornado Cash, which has reportedly facilitated over $7 billion in cryptocurrency laundering since its inception in 2019, according to the U.S. Treasury Department.
Pertsev's sentencing follows closely after the arrest of Samourai Wallet founder Keonne Rodriguez. Rodriguez, along with the wallet's chief technology officer William Hill, faces charges related to conspiracy to commit money laundering and operating an unlicensed remittance business. The case underscores a broader trend revealing a U.S. stance on cryptocurrency mixers like Tornado Cash, interpreted by some, such as Amanda Tuminelli, legal head of the DeFi Education Fund, as indicative of a "disdain for privacy."
