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Inappropriate Use of Adobe Code Signing Certificate

Adobe: We recently received two malicious utilities that appeared to be digitally signed using a valid Adobe code signing certificate. The discovery of these utilities was isolated to a single source. As soon as we verified the signatures, we immediately decommissioned the existing Adobe code signing infrastructure and initiated a forensics investigation to determine how these signatures were created. We have identified a compromised build server with access to the Adobe code signing infrastructure. We are proceeding with plans to revoke the certificate and publish updates for existing Adobe software signed using the impacted certificate. This only affects the Adobe software signed with the impacted certificate that runs on the Windows platform and three Adobe AIR applications* that run on both Windows and Macintosh. The revocation does not impact any other Adobe software for Macintosh or other platforms.

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