DeFi lost $169M across 34 protocols in Q1 as Circle steps up post-quantum security

DeFi recorded $169 million in losses across 34 protocols in Q1, with incidents including a $40 million key compromise and Resolv's $24.5 million breach. While many current attacks focus on access control and key management, Circle is moving early on post-quantum cryptography, as networks face slow upgrade cycles and address-reuse exposure.