Treasury Department recognizes legitimate applications of cryptocurrency mixing services
A Treasury Department analysis submitted to Congress was mandated through provisions within the GENIUS framework for stablecoin regulation.
In its congressional report titled "Innovative Technologies to Counter Illicit Finance Involving Digital Assets," the United States Treasury Department recognized that mixers, which obscure cryptocurrency transactions to protect user anonymity, have legitimate applications.
According to the report, "As consumers increase their use of digital assets for payments, individuals may want to use mixers to maintain more privacy in their consumer spending habits." The document from the Treasury further stated:
"Lawful users of digital assets may leverage mixers to enable financial privacy when transacting through public blockchains. For instance, individuals may use mixers to protect sensitive information on personal wealth, business payments or charitable donations from appearing on a public blockchain."
Nevertheless, the document also highlighted the risks associated with "darknet" or non-custodial, decentralized mixing platforms. According to the Treasury Department, these non-custodial mixers have been utilized for laundering money or transferring illegal proceeds by cybercriminal organizations, including hacking groups with ties to North Korea.
The report's authors proposed that custodial mixing services, which are centralized platforms that hold user assets throughout the mixing procedure, have the ability to provide identifying details that authorities could use to monitor users and trace transaction paths.
The topic of privacy in cryptocurrency emerged as a contentious issue throughout 2025, with increasing financial surveillance measures and efforts by US legislators to implement know-your-customer (KYC) requirements on providers of digital asset services and even decentralized finance (DeFi) platforms.
DeFi leaders and seasoned investors warn about the threat to privacy
Leaders and proponents within the DeFi space raised concerns about vague wording in the Digital Asset Market Clarity Act of 2025, also known as the CLARITY bill, which could compel DeFi platforms to gather identifying data from their users.
Additionally, the proposed legislation failed to provide adequate protections for developers of open-source software operating in the US, as noted by Alexander Grieve, vice president of government affairs at crypto investment company Paradigm.
Ray Dalio, a former hedge fund manager, also issued a warning that central bank digital currencies (CBDCs), which are onchain fiat currencies managed by a central banking institution or the government, are on the horizon and represent a significant threat to digital privacy.
During an interview with independent journalist Tucker Carlson, Dalio characterized CBDCs as a "very effective controlling mechanism" for the government.