Share this article

Tornado Cash Developer's Arrest in the Netherlands Draws Community Protest

After the detention of Alexey Pertsev, campaigners worry holding developers accountable for malicious use of their code could have a dangerous, chilling effect.

Updated May 11, 2023, 5:01 p.m. Published Aug 21, 2022, 2:57 p.m.
jwp-player-placeholder

More than 50 people gathered in Amsterdam's Dam Square on Saturday to protest the arrest of blockchain developer Alexey Pertsev, who was arrested Aug. 10 on suspicion of involvement in the Tornado Cash protocol that was sanctioned earlier this month by U.S. authorities.

The 29-year-old was held just two days after the U.S Treasury Dept. froze Tornado, a virtual-currency mixer it said was used by North Korean hackers. After an Aug. 12 closed-door hearing, an examining judge agreed to keep him in custody for two weeks. A press release issued by Dutch financial crime authority FIOD said the arrest was on suspicion of “involvement in concealing criminal financial flows and facilitating money laundering” through the service, which can obfuscate the source and destination of funds that pass through it.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the State of Crypto Newsletter today. See all newsletters

Read more: Tornado Cash Sanctions Are Spiraling Into Compliance Nightmares

While the system can be used to bury criminal proceedings, it also has legitimate applications. Dutch authorities have not stated just which laws Pertsev allegedly broke. Different press releases and statements have offered different explanations. Pertsev himself has yet to be charged with any wrongdoing, so the demonstrators were reluctant to comment on legal issues. Many, however, worry about what Pertsev's arrest means for the future of Web3 and are conscious of a chilling effect on the Netherlands’ blockchain ecosystem.

“It’s a case where the fundamental principle of crypto is being questioned,” Roman Buzko of law firm Buzko Krasnov told CoinDesk at the demonstration. The case concerns “whether code is an expression of free speech. In my view, it is.”

In the U.S., code is deemed protected under the First Amendment to the country's constitution, but that's a notion still being tested in Europe.

The protestors, who included Pertsev’s wife Xenia Malik, waved placards demanding his release and chanted “open source [code] is not a crime.”

FIOD also said that those behind decentralized autonomous organizations (DAO), the loose structures that govern many Web3 projects, “have made large-scale profits” from criminal flows, though it is not clear if they consider Pertsev to have been involved.

Read more: Tornado Cash Sanctions Are Spiraling Into Compliance Nightmares

The arrest “goes against everything I’ve been working on for the last couple of years,” protestor Eléonore Blanc said. “This is creating a chilling effect that goes against innovation, that goes against the community.”

The FIOD statement is “more FUD, more fear, uncertainty and doubt, coming from Dutch regulators and from Dutch institutions. It’s not good,” she said. Blanc is the founder of cryptocanal.org, a Web3 events and consultancy company. “Let’s stay competitive, let’s have clear laws … this creates uncertainty.”

Others say authorities should really be focused on holding accountable those responsible for debacles such as the recent crash of terraUSD.

“Alex is just a developer. They should be going after the true criminals,” said protestor and Web3 developer Naomi Schettini. Pertsev is “not responsible for criminals using his code for doing illicit activity. That’s like saying the inventor of the knife is responsible for murders. It’s truly ridiculous.”

The arrest could have implications for those in other areas of web development, said Rodrigo Zapata, a project manager in a blockchain-based biodiversity company.

It is “the equivalent to put someone in jail that codes Linux because some hackers somewhere in some country are using it for hacking some government systems,” Zapata told CoinDesk. “It's just ridiculous and out of proportion.”

Read more: US Treasury's Tornado Cash Sanctions Are ‘Unprecedented,’ Warns Congressman

Laws, he said, need to be updated for the open-source era. “Public authorities are overstepping what is supposed to be done by the legislators, and not by executive power.”

Whether the authorities will take notice is a different matter. While the gathering was one of the larger groups in the square wedged between the Royal Palace and Wax Museum in the heart of the capital, the #FreeAlex protestors jostled with Evangelical Christians, Satanists and performance artists dressed as Death and Jack Sparrow.

Among the other signs seeking attention: “Boycott Israel,” “Hands off Cuba,” “Jesus was Black,” "Stop organ harvesting from Falun Gong" and "Democracy is back in Bolivia.”

Both FIOD and and the Dutch public prosecutor declined to comment when approached by CoinDesk before the demonstration.

Read more: #FreeAlexPertsev: Protests Planned for Amsterdam Following Tornado Cash Developer’s Arrest

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

Key U.S. Senator on Crypto Bill, Lummis, Negotiating Dicey Points With White House

Senators Cynthia Lummis and Kirsten Gillibrand (Nikhilesh De/CoinDesk)

The Republican lawmaker who is among the core negotiators on the U.S. market structure bill said the White House has rejected some ethics language.

What to know:

  • Sen. Cynthia Lummis (R-Wyo.) said she is negotiating with the White House on behalf of Senate Democrats trying to insert ethics provisions into Congress' market structure legislation.
  • Lawmakers should reveal a new draft market structure bill by the end of the week and hold a markup hearing next week, she said.