6개 프로젝트 보안 감사: 25개 이슈 발견 수정 기록

A comprehensive security audit of 6 Python projects uncovered 25 critical and moderate issues, with 92% remediated, including exposed API credentials in Git history and disabled HTTPS verification across 10+ locations. These findings demonstrate that security debt accrues silently when fundamental safeguards—dependency pinning, explicit exception handling, input validation, and secrets management—are deferred until deployment. The most valuable lesson is that embedding security checks from day one costs exponentially less than post-incident forensics, making security governance a foundational development requirement rather than an optional enhancement.