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Europol Criticizes Bitcoin Mining, Says It Attracts Criminal Actors

Jimmy Aki
Last updated: | 2 min read
Europol Bitcoin Mining

The European law enforcement agency Europol issued a critical report on June 10, targeting Bitcoin miners and layer-2 blockchain solutions. The Europol Bitcoin mining stance dwells on the concern that mining operations could be used to conceal illegal proceeds, making them attractive to fraudsters and ransomware operators.

In a comprehensive 40-page report on cryptographic encryption, Europol expressed concerns about the challenges posed by Bitcoin mining and layer-2 solutions to law enforcement investigations.

Deep Dive into Europol Bitcoin Mining Report


Europol highlighted that criminal actors can exploit mining operations to obscure illicit earnings and, in some cases, even generate additional profits for themselves.

The report also cited specific cases, such as the BitClub Network, where mining pools were used to promote Ponzi schemes. In this instance, BitClub Network falsely promised earnings through pool mining, leading to hundreds of millions of euros in losses and substantial financial impact.

Europol’s concerns extend beyond crypto mining. The law enforcement agency argued that the broader cryptocurrency sector poses additional threats.

The increasing use of zero-knowledge proofs and layer-2 applications on the blockchain complicates the tracing of funds, presenting further challenges for law enforcement efforts.

“Zero-knowledge proofs and layer 2 solutions also allow for transactions to take place without showing (some of them) transactional data publicly,” Europol stated. “Zero-knowledge cryptography allows for the verification of information without revealing any information publicly.”

The Europol Bitcoin mining report cited specific examples to illustrate their concerns. For instance, the privacy coin Zcash uses zero-knowledge proofs to ensure a wallet’s balance and transaction history are accurate without revealing them on the public blockchain.

Similarly, crypto mixer Tornado Cash employs zero-knowledge proofs to allow users to withdraw funds without disclosing their original deposits. Despite it being a noncustodial crypto mixing protocol, Alexey Pertsev, Tornado Cash developer was found guilty of money laundering in May 2024.

While the indictment of Alexey Pertsev has culminated in serious implications for open-source developers, a hacker moved about $48 million of stolen funds Tornado Cash after exploiting Orbit Chain.

SLIP39 Standard Among the Drivers of Europol Bitcoin Mining Stance


Meanwhile, the Europol report explained that recovering a criminal’s wallet could be “complicated” due to the SLIP39 standard technology.

SLIP39, also known as Shamir Backup, is a cryptographic standard used for securely splitting a wallet’s recovery phrase into multiple parts. A subset of those parts must reconstruct the phrase, thereby improving security and complicating unauthorized access.

These technologies contribute to the issues the Europol sees in Bitcoin mining.

While these technologies offer great benefits, they can also be exploited for criminal activities.

The agency further stressed that law enforcement strategies and tools must evolve in tandem with these new forms of crime to keep pace with the rapidly expanding crypto industry.