Does GitHub scan for secrets automatically?
Yes, GitHub Secret Scanning automatically scans for known secret formats (AWS keys, Stripe keys, GitHub tokens, etc.) and alerts you. Enable it in Repository → Settings → Code security and analysis → Secret scanning. It's free for public repos and available on GitHub Enterprise for private repos.
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More FAQs in Git Secrets and Preventing Credential Leaks Tools and Best Practices
Add .env to .gitignore, use pre-commit hooks with git-secrets or husky to scan for secrets before each commit, enable GitHub Secret Scanning, and never hardcode secrets in code always use process.env. Use tools like truffleHog or GitGuardian for ongoing scanning.
Rotate the secret immediately (it's compromised). Remove from Git history with git filter-branch or BFG Repo-Cleaner. Force push the cleaned history. Audit AWS CloudTrail and database logs for unauthorized access. Notify your team and update all affected services with new secrets.
git-secrets is a pre-commit hook tool that scans your staged changes for known secret patterns (AWS keys, custom patterns) before each commit. If a secret is found, the commit is blocked. Install with brew install git-secrets, then git secrets --install in your repo.
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