$USDC The decentralized finance (DeFi) platform Alex Protocol, based on the Stacks blockchain, suffered an exploit on June 6, 2025, losing $8.3 million in digital assets due to a vulnerability in its autolisting logic. The Alex Lab Foundation promised to fully reimburse affected users in USDC within seven business days, following a claims verification process. The attack is suspected to be linked to the North Korean group Lazarus.