KT Corp (Korea Telecom) is a major South Korean telecommunications operator and network services provider.
KT Corp is a organization tracked across 4 threat clusters and 5 intelligence report mentions on ThreatCluster. First observed November 7, 2025; most recent activity July 30, 2026.
KT Corp (Korea Telecom) is a major South Korean telecommunications operator and network services provider. It has drawn cybersecurity attention due to a malware-related incident affecting its systems and reports that it concealed a malware infection on 43 servers last year, signaling significant security posture concerns for a critical infrastructure entity.
KT Corp was fined ₩53.97 billion (approximately $37.6 million) by South Korea's privacy regulator for failing to secure its femtocell system, allowing unauthorized access to its mobile network. The breach began in…
KT Corp., South Korea's second-largest mobile carrier, concealed malware infections on 43 servers from March to July 2024. A government-led investigation revealed that the company failed to report these security…
Five individuals have pleaded guilty to facilitating North Korean operatives in obtaining remote IT jobs at U.S. companies by using false and stolen identities. The U.S. Department of Justice has also seized $15 million…
KT Corp., South Korea's second-largest mobile carrier, concealed malware infections on 43 servers between March and July 2024. A government-led investigation revealed that the company failed to report these security…
KT Corp (Korea Telecom) is a major South Korean telecommunications operator and network services provider.
The most recent intelligence report mentioning KT Corp on ThreatCluster is dated July 30, 2026. Activity was first observed November 7, 2025, giving a tracked span from then to July 30, 2026.
Across ThreatCluster reporting, KT Corp most frequently co-occurs with Earth Bluecrow, Red Menshen, Data Breach, Malware, Coupang, among 12 tracked related entities.
The most significant recent cluster is “KT Corp Fined ₩53.97 Billion for Femtocell Breach and Evidence Tampering” (3 articles · Updated July 30, 2026). KT Corp appears across 4 threat clusters in total, listed above with sources.
KT Corp appears in 5 intelligence report mentions across 4 deduplicated threat clusters, aggregated from 17,000+ monitored sources.