A March 2026 Treasury report to Congress formally acknowledges that crypto mixers can serve lawful privacy purposes. It marks a notable shift from years of enforcement that framed these tools primarily as criminal infrastructure. Crypto Mixers Get a Partial Reprieve — On Paper The report, submitted under the GENIUS Act framework, marks the first time the department has explicitly recognized privacy-based use cases for mixing services in an official congressional filing. The Treasury’s acknowledgement centres on the reality that public blockchains expose transaction data by default
source: https://beincrypto.com/us-treasury-crypto-mixers-legitimate-freeze-law/