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Congressional Budget Office Hacked by Suspected Foreign Actor

Congressional Budget Office Hacked by Suspected Foreign Actor

First seen 23 Nov 2025, 03:35 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

The Congressional Budget Office (CBO) confirmed it was hacked, with a suspected foreign entity behind the breach. The incident, disclosed on November 6, 2025, may have exposed sensitive data and communications related to legislative processes. CBO has taken immediate action to contain the incident and enhance security measures.

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