Korea Telecom — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
3
occurrences
First Seen
December 22, 2025
Last Seen
July 30, 2026

Korea Telecom is an organization tracked by ThreatCluster, appearing in 2 threat clusters built from 3 intelligence report mentions.

Korea Telecom is a organization tracked across 2 threat clusters and 3 intelligence report mentions on ThreatCluster. First observed December 22, 2025; most recent activity July 30, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • KT had deployed thousands of femtocells across its network using shared certificates stored in plaintext on each device, without root password protection and with SSH enabled for remote access — www.theregister.com · July 30, 2026
  • South Korea to require face scans to buy a SIM — Theregister · December 22, 2025
  • There’s so much stolen data in the world, South Korea will require face scans to buy a SIM — Theregister · December 22, 2025

Frequently asked questions

What is Korea Telecom?

Korea Telecom is an organization tracked by ThreatCluster, appearing in 2 threat clusters built from 3 intelligence report mentions.

Is Korea Telecom still active?

The most recent intelligence report mentioning Korea Telecom on ThreatCluster is dated July 30, 2026. Activity was first observed December 22, 2025, giving a tracked span from then to July 30, 2026.

What is Korea Telecom associated with?

Across ThreatCluster reporting, Korea Telecom most frequently co-occurs with Data Breach, Malware, Phishing, Coupang, LG Uplus, among 12 tracked related entities.

What are the latest developments involving Korea Telecom?

The most significant recent cluster is “KT Corp Fined ₩53.97 Billion for Femtocell Breach and Evidence Tampering” (3 articles · Updated July 30, 2026). Korea Telecom appears across 2 threat clusters in total, listed above with sources.

How much reporting does ThreatCluster have on Korea Telecom?

Korea Telecom appears in 3 intelligence report mentions across 2 deduplicated threat clusters, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown