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Git Security Best Practices

Protect your code and credentials with GPG signing, SSH keys, secret scanning, and Git hooks.

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Git security spans multiple layers: signing commits to verify identity, managing SSH keys for authentication, scanning for leaked secrets, and preventing sensitive data from being committed.

Security in Git is often overlooked until it's too late. Unlike centralized systems where a server enforces access control, Git's distributed nature means every clone contains the full history — including any secrets that were accidentally committed. A single AWS key committed to a public repo can lead to thousands of dollars in unauthorized usage within minutes. A layered security approach combines prevention (hooks, .gitignore), detection (secret scanning), authentication (SSH keys), and verification (GPG signing) to protect both your code and your infrastructure.
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