Non-custodial Bitcoin swap provider Boltz shut down all services on August 3 after AI-assisted attackers iterated through vulnerabilities faster than its small team could close them. Key takeawaysBoltz suspended all Bitcoin mainchain, Lightning, and Liquid swap services indefinitely on August 3, 2026, citing months of AI-assisted attacks that outpaced its patching capacity. The shutdown affected downstream wallets and services including ZEUS, Aqua, and Bull Bitcoin, all of which relied on Boltz infrastructure for swap functionality. Lightning, Liquid, and on-chain Bitcoin swaps stayed live. "What we are seeing is a major paradigm shift for Bitcoin services operating on an open source stack, and it needs careful analysis.