Tornado Cash Developer’s Arrest Sparks Protest in Amsterdam

More than 50 people gathered in Amsterdam’s historic Dam Square this weekend in protest of Tornado Cash developer Alexey Pertsev’s arrest

article-image

Source: Tornado Cash

share
  • Tornado Cash developer Alexey Pertsev was arrested earlier this month over alleged facilitation of money laundering
  • Privacy advocates worry Pertsev’s arrest could have damaging consequences for open-source coders

Supporters of Tornado Cash developer Alexey Pertsev gathered in Amsterdam to protest over the weekend, almost two weeks after he was arrested in the Dutch capital.

Dutch financial crimes agency FIOD suspects the 29-year-old programmer of facilitating money laundering through the crypto-mixing service. But the agency hasn’t specified under which laws Pertsev was arrested. He is yet to be charged with a specific crime, per the latest available information.

Pertsev’s arrest has sparked widespread backlash among open source developers, and an online petition decrying his detention has garnered almost 2,000 signatures.

DeFi (decentralized finance) aggregator 1inch Network had called on individuals to join a protest rally in Amsterdam’s historic Dam Square, arguing developers, including Tornado Cash programmers, hold no control over how their code is used.

On Saturday, over 50 protesters held placards with slogans including: “Free Alex Pertsev,” “Writing open source code is not a crime,” and, “Will you arrest a gun maker for facilitating public shooting?”

Loading Tweet..

The Change.org petition, created by Helsinki-based product manager Daria Mironova, states the “accusations against Alex threaten to kill the entire open-source software segment.”

US authorities believe Tornado Cash is a primary tool for North Korean hacker crew Lazarus Group in laundering stolen cryptocurrency. 

Earlier this month, the US Treasury sanctioned the mixer’s blockchain addresses, among others, rendering it illegal for US persons to interact with the tool.

The mixer’s front-end web app is now offline, although the actual protocol — which is powered by smart contracts — persists on the Ethereum blockchain.

Pertsev’s wife Ksenia Malik told Cointelegraph last week that she hasn’t got the chance to contact him after authorities took him in.

Malik said she didn’t expect someone could be arrested for writing open source code and expressed gratitude for support shown.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Flying_Tulip.png

Research

Flying Tulip's perpetual put option provides real principal protection, but investors must pay a valuation premium today for products that have to be built over the next 24 months. This structure works best as a stablecoin substitute where the put allows continuous monitoring—accept opportunity cost in exchange for asymmetric upside if the team executes on its ambitious cross-collateral architecture.

article-image

As flows consolidate and volatility fades, finding edge now means knowing which games are still worth playing

article-image

Value distribution came to $1.9 billion distributed in Q3, though total revenues have yet to beat 2021 heights

article-image

MegaETH public sale auction ends tomorrow, and the free money machine has attracted people who like free money

article-image

With tBTC under the hood, Acre abstracts bridging and converts non-BTC rewards to bitcoin

article-image

Accountable is also eyeing mid-November for mainnet launch

article-image

“Adjusted for size, I think it may be the most successful ETP launch of all time,” Bitwise CIO Matt Hougan says