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Nation-State Hackers Breach Ribbon Communications for Nearly a Year

Nation-State Hackers Breach Ribbon Communications for Nearly a Year

First seen 2 Nov 2025, 16:14 UTC • •

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

Ribbon Communications, a U.S. telecommunications provider, confirmed that government-backed hackers accessed its network starting in December 2024 and remained undetected for almost a year. The breach involved unauthorized access to sensitive data belonging to three of its customers. Ribbon has since notified law enforcement and believes the hackers are no longer in its network.

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