# Tracing and Resolving a Critical Security Bug in Smart Contract Analysis > Source: > Published: 2026-07-21 21:52:10+00:00 *This is a submission for DEV's Summer Bug Smash: Smash Stories powered by Sentry.* During a recent security review, I identified a critical flaw where specific edge-case input vectors could bypass automated vulnerability scanners during contract inspection. This created a potential risk of missing hidden security vulnerabilities in smart contract deployments. To address this issue, I analyzed the parser logic and restructured the code evaluation flow: Securing smart contracts and AI monitoring tools requires proactive boundary-testing. Ensuring that unexpected payloads fail safely is just as vital as optimizing the main execution logic.