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
  • 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

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

Research Report Templates.png

Research

Fully homomorphic encryption is emerging as the leading cryptographic approach to onchain confidentiality, enabling computation directly on encrypted data without exposure. We are constructive on FHE as a category and Zama as the clear leader, though the 1,000x+ computational overhead and hardware dependency represent material execution risks that make throughput scaling the key variable for valuation.

article-image

BTC finished the week up 1.6%, while L2s, RWAs and the treasury trade continued to grind lower

article-image

DTCC moves DTC-custodied Treasuries onchain via Canton, while Lighter’s LIT launches trading at a fees multiple in Hyperliquid territory

article-image

In the 90s, rapt audiences worldwide watched a coffee pot — will that fascination ever turn to crypto?

article-image

Some systems improve by failing — and crypto has no choice

article-image

Yield Basis introduces an IL-free AMM design that already dominates BTC DEX liquidity

article-image

Maybe tokenholders don’t need the rights that corporate shareholders have come to expect

Newsletter

The Breakdown

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

Blockworks Research

Unlock crypto's most powerful research platform.

Our research packs a punch and gives you actionable takeaways for each topic.

SubscribeGet in touch

Blockworks Inc.

133 W 19th St., New York, NY 10011

Blockworks Network

NewsPodcastsNewslettersEventsRoundtablesAnalytics