USDC freeze delays: ZachXBT accuses Circle over $420M+ illicit flows
On-chain investigator ZachXBT alleges Circle missed freeze/blacklist actions on about $420M+ worth of USDC tied to 15 major hack and fraud cases since 2022. The claims suggest Circle had the technical ability to intervene, but often took “minimal” action or acted too late, with delays spanning months to years and involving law-enforcement/private-sector requests.
Key examples traders should note: (1) GMX hack (Jul 2025): ~$9M in USDC allegedly not frozen. (2) Cetus hack: wallets reportedly blacklisted only after stolen USDC had already been converted into ETH. (3) Drift Protocol case: attackers allegedly moved ~232M USDC across 100+ transactions within about six hours before converting.
Circle previously froze USDC linked to sanctioned Tornado Cash addresses after the Aug 2022 OFAC action, showing blacklist controls can work under clear compliance pressure. Circle also said it is exploring “reversible” USDC transaction controls for hacks, theft, or fraud, but Cointelegraph reports it did not respond immediately before publication—adding uncertainty for USDC counterparty risk assessment.
For crypto traders, the headline is not USDC tokenomics—it is stablecoin issuer compliance reliability. Repeated freeze delays may increase perceived counterparty risk and influence stablecoin/DeFi liquidity decisions, especially around exchanges and protocols routing large volumes of USDC.
Bearish
This is primarily a compliance/counterparty-risk story for USDC. Allegations that Circle can freeze but repeatedly delays or misses freezes in high-profile hacks (e.g., GMX/Cetus/Drift) can reduce market confidence in USDC recoverability during attacks. In the short term, that may pressure USDC-related liquidity and risk appetite across DeFi routes and exchanges that rely on rapid issuer action. In the long term, continued scrutiny and regulatory attention could drive changes (e.g., “reversible” controls), but until concrete execution improves, traders are likely to price higher operational/compliance risk for centralized stablecoin exposure—generally bearish for USDC.