3rd November

Research.Checkpoint •[email protected] • November 3, 2025

For the latest discoveries in cyber research for the week of 3rd November, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES The Everest ransomware group has claimed responsibility for a series of attacks impacting AT&T, Dublin Airport, and Air Arabia. The ransomware gang exfiltrated sensitive data including 576,000 AT&T applicant records, 1.5 million […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

CBO Cyber Attack and Everest Ransomware Claims On November 10, 2025, the US Congressional Budget Office confirmed a cyber attack by a suspected foreign actor, potentially exposing sensitive communications. Separately, on November 3, 2025, the Everest ransomware group claimed responsibility for attacks on AT&T, Dublin Airport, and Air Arabia, exfiltrating sensitive data including 576,000 AT&T applicant records. 2 sources 18

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3rd November

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Extracted Entities

Attack Types (1)

Companies (3)

Ransomware Groups (1)