Your AWS Credentials Are Still on GitHub Even After You Delete Them

Deleting credentials from a file and pushing to GitHub does not remove them — Git retains every committed version, making secrets recoverable via simple commands like `git log -p`. Automated bots scan public repos within seconds and exploit exposed keys; a 2024 incident led to $50K in unauthorized charges within two hours. To truly remove credentials, developers must rewrite Git history using `git filter-branch` or the BFG Repo Cleaner and force-push.