Here's a very quick example of how to setup GitHub SSH keys and use them to perform Git clone, push and pull commands over a securely configured SSH connection.

Assume your GitHub account is hacked, users with weak crypto keys told SSH keys give access to projects belonging to Spotify, Yandex, and UK gov.

Google Go to the Add a Security Key page section of My Account. Remove the key if it's already inserted. Click on the Register button. Insert your Security Key into a USB port on your computer.

A bug in the library's pseudo-random number generator allowed for the generation of duplicate RSA keys, enabling users to access other GitHub accounts secured with the same SSH key.