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U.S. Congressional Budget Office (CBO) hit by cyberattack

Incident
First reported
Last updated
Happening score
H score 16
1 unique sources, 1 articles

Summary

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The U.S. Congressional Budget Office (CBO) confirmed a cybersecurity incident after a suspected network breach, raising concern that sensitive data and emails may have been exposed. Officials said the agency moved quickly to contain the incident and added new monitoring and security controls. The investigation is ongoing while Congress work continues.

Timeline

  1. 07.11.2025 02:22 2 articles · 6mo ago

    CBO confirms cybersecurity incident after suspected foreign network breach

    Initial Disclosure

    The U.S. Congressional Budget Office confirmed a security incident after a suspected foreign hacker breached its network, and the agency said it acted quickly to contain the compromise, added additional monitoring and new security controls, and kept Congress work continuing while investigators assessed whether emails and exchanges between congressional offices and CBO analysts may have been exposed.

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