Lumen is a organization tracked across 7 threat clusters and 6 intelligence report mentions on ThreatCluster. First observed October 31, 2025; most recent activity May 29, 2026.
In early April 2026, Charter Communications suffered a data breach affecting 4.9 million accounts, attributed to the ShinyHunters extortion gang. The attackers accessed an employee's Microsoft Entra account via a voice…
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…
Mike Burgess, head of the Australian Security Intelligence Organisation, reported that Chinese government-backed hacking groups are probing Australia's critical infrastructure and communications networks for potential…
The US FCC has repealed cybersecurity regulations established to counter the Salt Typhoon hacking campaign attributed to a Chinese threat actor. This decision raises concerns among lawmakers about potential national…
Ribbon Communications, a major telecom provider, was breached by suspected nation-state hackers starting in December 2024. The attackers remained undetected for nearly a year, potentially exposing sensitive data from…
The Federal Communications Commission (FCC) voted to rescind cybersecurity rules established after the Salt Typhoon hack, which targeted U.S. telecommunications. This rollback, occurring in December 2025, eliminates…
Australia's spy chief, Mike Burgess, has reported that hackers linked to the Chinese government are probing the nation's critical infrastructure, including telecommunications and utilities. He highlighted the potential…