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Cyber Attacks by Ransomware Groups Target Major Organizations

First seen 2 Dec 2025, 18:33 UTC •Research.Checkpoint •82% similarity •8

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In November 2025, the Everest ransomware group attacked AT&T, Dublin Airport, and Air Arabia, exfiltrating sensitive data including 576,000 AT&T applicant records. Additionally, a cyber attack on the US Congressional Budget Office (CBO) was confirmed, involving a suspected foreign threat actor breaching its network and potentially exposing sensitive communications.

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