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 ...

GitHub has revoked weak SSH authentication keys generated using a library that incorrectly created duplicate RSA keypairs.

Hanley, who is also GitHub's SVP of Engineering, said that they quickly contained the exposure and investigated the root cause of the issue. GitHub's RSA SSH Private Key Accidentally Leaked to Public!

Earlier this year, researcher Ben Cox collected the public SSH (Secure Shell) keys of users with access to GitHub-hosted repositories by using one of the platform’s features.

If you need to get ssh keys copied from client to server but ssh-copy-id isn't an option, you'll have to go the manual route. Here's how to do it.

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