Leaked EU Docs Warn Members to Clamp Down on Crypto Mixers

Blockworks exclusive: A final draft of incoming EU regulation reveals bloc regulators are increasingly concerned about crypto privacy

article-image

Charles Michel, president of the European Council; Source: Annika Haas (EU2017EE), CC BY 2.0

share

key takeaways

  • EU regulators are warning member states that the European Banking Authority will clamp down on crypto mixers and other privacy-preserving technologies
  • Crypto asset service providers would be required to strictly monitor crypto tied to “self-hosted wallets”

The European Union (EU) is preparing to warn its 27 member states of pending amped-up scrutiny of technologies that power anonymous transactions, such as crypto mixers and privacy wallets.

In a final draft for amendments to EU regulation 2015/847 obtained by Blockworks, the governing body outlines pending changes to rules dictating how member states should police the digital asset sector.

The document mostly relates to crypto asset service providers (CASPs) — such as exchanges, wallets and staking platforms — and the steps they must take to stamp out money laundering and other illicit activity in line with Financial Action Task Force directives.

Incoming stipulations tied to how EU member states must enforce the so-called “travel rule” are known — crypto entities must log detailed information on users who transact 1,000 EUR ($998) or more in digital assets per year. Know-your-customer requirements include obtaining names, addresses, countries of origin and serial numbers from passports.

Transfers involving unique digital assets, such as NFTs, should be exempt — unless specifically detailed in the incoming Markets in Crypto-Assets (MiCA) regulation.

EU financial watchdog still after ‘self-hosted’ crypto wallets

Whether these demands extend to crypto wallets not under the auspices of exchanges has been a sticking point for the EU — and a matter of contention worldwide. 

Previous drafts of the regulation listed transfers involving products and technologies “designed to enhance anonymity, including mixers or tumblers” as “high-risk factors of money-laundering, terrorist finance and other criminal activities.”

The final draft, however, says the European Banking Authority — the EU’s primary financial regulator — “shall pay particular attention to products, transactions and technologies that may favor anonymity such as privacy wallets, mixers or tumblers.”

The new move is especially pertinent considering the US Treasury’s sanctioning of Tornado Cash earlier this year. Protocol developer Alexey Pertsev is reportedly set to remain in Dutch jail until at least November after his appeal was denied.

Excerpt from the final draft

In the latest draft, dated Sept. 30, regulators said CASPs “should in principle not be required to verify the information on the user of the self-hosted address.”

“Nonetheless, in case of a transfer whose amount exceeds 1,000 EUR and is sent or received on behalf of a customer of a crypto-asset service provider to or from a self-hosted address, that crypto-asset service provider should verify whether such self-hosted address is effectively owned or controlled by that customer,” the draft states.

Even so, the final draft contains fresh clauses. In situations of higher risk — like interacting with self-hosted wallets — CASPs should consider applying due diligence measures,  including identifying counterparties in a given crypto transaction.

Excerpt from the final draft

The wording would likely require CASPs to gather additional information about where the cryptocurrencies were obtained and be subject to further monitoring.

Representatives for the EU and the European Banking Authority did not immediately return requests for comment. 

The complete updated set of regulations will come into force 20 days after its publication in the Official Journal of the European Union. Before that happens, the European Council and Parliament must agree to ratify the proposal within three separate readings, with adjustments possible in between. 

The process lasts on average 24 to 31 months, with this particular proposal document first drafted last year.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Upcoming Events

Old Billingsgate

Mon - Wed, October 13 - 15, 2025

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.

Industry City | Brooklyn, NY

TUES - THURS, JUNE 24 - 26, 2025

Permissionless IV serves as the definitive gathering for crypto’s technical founders, developers, and builders to come together and create the future.If you’re ready to shape the future of crypto, Permissionless IV is where it happens.

Brooklyn, NY

SUN - MON, JUN. 22 - 23, 2025

Blockworks and Cracked Labs are teaming up for the third installment of the Permissionless Hackathon, happening June 22–23, 2025 in Brooklyn, NY. This is a 36-hour IRL builder sprint where developers, designers, and creatives ship real projects solving real problems across […]

recent research

Featured.png

Research

Helium stands at a pivotal moment in its evolution as a decentralized wireless network, balancing rapid growth, economic restructuring, and global expansion. With accelerated growth in domestic DAUs and Hotspots supporting its network, Helium is leveraging strategic partnerships and innovative proposals to scale internationally. The recent implementation of HIP 138, “Return to HNT,” has unified its token economy under HNT, simplifying participation and strengthening liquidity, while HIP 139’s phase-out of CBRS refocuses efforts on scalable Wi-Fi offload. Meanwhile, governance shifts under HIP 141 raise questions about centralization as Nova Labs consolidates control over the roadmap.

article-image

In 2011, WikiLeaks faced a financial blockade imposed by the US government. It was Bitcoin’s first major test.

article-image

Kado’s founder Emery Andrew spoke to Blockworks about the acquisition and what’s next for the team

article-image

LayerZero’s Bryan Pellegrino chatted with Blockworks about the firm’s next steps and its 10-year runway

article-image

Colosseum co-founder Matty Taylor is seeing “high-performance [Solana] founders showing a lot of interest in private trading technology”

article-image

Executives weigh the growth potential they see in the public stock and private credit/equities arenas

article-image

Players can stake ME, trade tokens and link wallets to climb the leaderboard