GitHub Replaces Private RSA SSH Key After Public Exposure

'Abundance of Caution' Cited for Move; No System Compromise or Data Breach Detected
GitHub has replaced its private RSA SSH host key after discovering it was being inadvertently exposed to the public via a GitHub repository. Used to safeguard SSH access to Git operations, a bad actor could use the key to impersonate GitHub or eavesdrop. But GitHub reported no signs of abuse.

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