GitHub has added support for securing SSH Git operations using FIDO2 security keys for added protection from account takeover attempts.

When you add a security key to SSH operations, you can use these devices to protect you and your account from accidental exposure, account hijacking, or malware, GitHub security engineer Kevin ...

Use SSH key authentication instead of passwords and enable Two-Factor Authentication if possible. Keep all Git-related tools and systems up to date with the latest security patches.