The Financial Crimes Enforcement Network (FinCEN) has formally withdrawn proposed regulations that would have imposed sweeping surveillance requirements on cryptocurrency mixers and unhosted wallets, citing internal concerns that the rules would create a "chilling effect on legitimate activity" The Block.
The withdrawal, announced October 5, 2026, marks a significant reversal in the Treasury Department's approach to crypto privacy tools. FinCEN had previously advanced proposals that would have designated crypto mixing as a "primary money laundering concern" under Section 311 of the PATRIOT Act, a designation that carries severe restrictions on financial institutions' dealings with designated entities The Block.
In explaining the decision, FinCEN stated it was withdrawing two proposed rules covering both unhosted wallets and crypto mixers "as part of the Trump Administration's deregulatory agenda" Cointelegraph. The bureau's explicit acknowledgment of potential harm to lawful uses represents a notable departure from previous regulatory framing that had emphasized mixers' role in obfuscating transaction trails.
The withdrawn proposals had drawn substantial criticism from privacy advocates and industry participants who argued that mixing services serve legitimate purposes, including protecting personal financial privacy and enabling fungibility for everyday transactions. Critics had warned that overly broad designations would effectively criminalize privacy-preserving tools without meaningful distinction between illicit and lawful use cases.
The regulatory rollback comes as law enforcement continues to grapple with high-profile crypto laundering cases. In a separate development, blockchain investigator ZachXBT reported infiltrating a Chinese crime network allegedly responsible for laundering over $1 billion for North Korean Lazarus Group operatives, including funds from the $1.5 billion Bybit hack Cointelegraph. ZachXBT said he gained access to the network by posing as a customer, enabling tracing of the illicit flows.
The FinCEN withdrawal signals a potential recalibration in how U.S. regulators balance financial surveillance objectives against privacy protections in the digital asset space, though the bureau did not indicate whether alternative regulatory frameworks might be pursued to address money laundering risks without the broad chilling effects identified in the withdrawn proposals.