Mozilla revokes Firefox signing key after unencrypted copy lands in GitHub

Mozilla has revoked a cryptographic key used to sign Firefox and Thunderbird releases after discovering someone had accidentally committed an unencrypted copy of the private key to a GitHub repository. The browser maker disclosed the mishap on Monday, saying the GPG private subkey was checked into a private GitHub repository accessible only to a small number of Mozilla employees. All of them were already authorized to access the key through other means. Still, leaving an unencrypted private signing key sitting in source control isn't exactly ideal, so Mozilla revoked the exposed subkey and replaced it. The affected subkey was used to sign Linux tarballs, RPM packages, and checksum files for Firefox and Thunderbird releases. Signing keys...

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