Why .gitignore Fails to Protect Your Code Secrets

Most developers mistakenly believe .gitignore prevents secret exposure, when it only blocks future commits—existing secrets remain archived in Git history. This article reveals the critical security gap between developer assumptions and reality, emphasizing that proper incident response (credential rotation, history cleanup, and continuous monitoring) is essential. With cloud services and APIs now standard in development, understanding Git's secret management limitations has become a foundational security skill.