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Vendors & MarketEmerging1 sourceAug 11, 2026 · 14:25via CyberInsider

Mozilla rotates Firefox and Thunderbird signing key after GitHub exposure

Brief

Mozilla has replaced a GPG subkey used to sign some Firefox and Thunderbird releases after an unencrypted copy of the previous key was accidentally committed to a private GitHub repository. The organization says its audit records show no evidence that an unauthorized person accessed the key. Mozilla engineer Ben Hearsum disclosed the incident on August …

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