Cryptomixer Shut Down as European Authorities Seize $29 Million in Bitcoin

European authorities have dismantled Cryptomixer, a Bitcoin mixing service suspected of facilitating large-scale money laundering.

The coordinated operation was led by Europol and carried out in Zurich, highlighting Europe’s ongoing effort to combat crypto-enabled financial crime.

Four-Day Operation Targets Core Infrastructure

The takedown, conducted from November 24 to 28, brought together Swiss and German police in a joint enforcement effort. Investigators focused on crippling the service’s core infrastructure, targeting its most critical components. Consequently, they seized three servers, over $29 million in Bitcoin, the cryptomixer.io domain, and more than 12 terabytes of data.

According to Europol, these assets underpinned a service that had facilitated high-volume illicit Bitcoin flows for years.

Alleged Laundering of Over $1.4 Billion Since 2016

Authorities allege that Cryptomixer processed over $1.4 billion in Bitcoin since 2016, much of it linked to serious criminal activity. Funds tied to drug trafficking, weapons sales, ransomware attacks, and payment-card fraud were reportedly routed through the platform.

Investigators note that Cryptomixer’s appeal lies in its slow settlement times and randomized output patterns. Collectively, these features reduce traceability and attract users who wish to obscure their transactions.

Why Crypto Mixers Remain a Tool for Criminals

Crypto mixers pool funds from multiple users and then redistribute them in smaller, irregular amounts, thereby obscuring the visible connection between any given sender and recipient.

Although operators often frame these tools as legitimate privacy solutions, investigators caution that they carry significant risks. In fact, mixers are frequently exploited by dark‑web marketplaces, ransomware groups, and other cybercriminal networks.

By breaking the on‑chain trail, mixers allow illicit actors to move assets with greater freedom. Subsequently, once mixed, funds can be routed back into exchanges or converted into other digital or fiat currencies with substantially reduced scrutiny.

Europol Provided Forensic Support

Europol played a key role in the operation, providing forensic analysis and international coordination to assist investigators in reconstructing transaction patterns and operational data.

The agency described this takedown as a continuation of its broader strategy to target laundering tools, following its involvement in the 2023 shutdown of ChipMixer, another major service implicated in masking large criminal flows.

Part of a Wider European Clampdown

The Cryptomixer seizure is the latest in a series of coordinated operations targeting crypto-enabled crime across Europe.

Earlier this month, law enforcement authorities in Cyprus, Spain, and Germany, in coordination with Eurojust, apprehended nine individuals. These individuals are alleged to have operated a crypto-laundering network that defrauded victims of $689 million.

Last month, Europol also seized $330,000 in digital assets and arrested seven people linked to a cybercrime-as-a-service group based in Latvia.