ZachXBT has accused USDC issuer Circle of over $420 million in compliance failures since 2022. In a detailed X thread dubbed the "Circle Files," he spotlights 15 major crypto hacks where Circle allegedly delayed or ignored freezing stolen USDC funds. This revelation, hot on the heels of the massive Drift Protocol exploit, is shaking the stablecoin world and raising tough questions about regulatory promises in crypto.

The Drift Hack

The latest trigger is the April 1, 2026, Drift Protocol exploit on Solana, the biggest DeFi breach of the year at $285 million. Hackers, exploiting a compromised admin key, drained $232 million in USDC, bridging it via Circle's Cross-Chain Transfer Protocol (CCTP) from Solana to Ethereum in over 100 transactions spanning six U.S. business hours. ZachXBT slammed Circle for zero intervention during this window, allowing laundering that rippled to 20+ Solana projects. "Circle had every tool but slept on it," he fumed, labeling CEO Jeremy Allaire a "bad actor."

A Pattern of Inaction Since 2022

ZachXBT's archive is a three-year timeline of alleged flops. Key cases include the 2025 Bybit hack (largest ever), where Circle lagged 24 hours behind Tether on freezing 338,000 USDC despite law enforcement pleas. Others: $9M from GMX DEX (July 2025), Nomad Bridge, Mango Markets, SwapNet ($16M, Jan 2026), and Cetus Protocol. In total, 15 incidents tally $420M+, but ZachXBT insists the real number's higher, as it skips minor cases. Circle's USDC contract has built-in blacklist/freeze powers, per its terms, yet enforcement faltered amid U.S. regs demanding AML action.

Circle's Silence Fuels the Fire

As of April 4, 2026, Circle hasn't publicly responded to ZachXBT's thread. The company touts "robust compliance" and regulation, but critics say buzzwords don't match deeds. This mute stance echoes past backlash, eroding trust in USDC's $30B+ market cap stability. Industry voices on Bankless and AMBCrypto echo dismay, warning of domino risks to DeFi builders relying on swift freezes.

What It Means for Crypto's Future

These claims spotlight stablecoin vulnerabilities as U.S. regs tighten post-Trump reelection. USDC's centralized controls promise safety but invite scrutiny. Did Circle prioritize speed over caution, or is monitoring flawed? For users like you eyeing DeFi or holdings, it's a red flag: Tether acted faster in spots, hinting at competition edges. ZachXBT urges better tools and urgency, as unchecked flows aid hackers and undermine adoption.