Grego AI, a startup founded in 2024, has earned a $250,000 bounty for autonomously discovering a critical vulnerability in a major blockchain protocol. The flaw, which could have led to a $27.7 million theft, was identified by Grego AI's multi-agent system without human intervention. This marks the largest bounty ever awarded for a vulnerability discovered solely by artificial intelligence. The company's "Deep Invariant Analysis" approach involves analyzing a protocol's entire codebase, building dependency maps, and deploying sandboxed agents to test potential exploits. This method allows the system to safely identify vulnerabilities that traditional audits might miss. Grego AI has previously reported critical vulnerabilities in high-profile ecosystems like Ethereum and Chainlink, earning top rankings on bug bounty platforms Immunefi and Hackenproof.