KDDI — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
June 24, 2026
Last Seen
July 16, 2026

KDDI is a organization tracked across 2 threat clusters and 4 intelligence report mentions on ThreatCluster. First observed June 24, 2026; most recent activity July 16, 2026.

Related Threat Clusters

  • KDDI Data Breach Exposes 14.22 Million Email Accounts

    KDDI, a Japanese telecommunications company, reported a significant data breach affecting up to 14.22 million email accounts. The breach was detected on June 17, 2026, when unauthorized access to an email system used by…

    12 articles · Updated June 24, 2026
  • Nichirei Cyberattack Disrupts KFC Japan's Operations

    A cyberattack on Nichirei Group, a major logistics provider in Japan, has severely disrupted food deliveries to KFC Japan. The incident, confirmed on July 13, 2026, involved unauthorized access to Nichirei's servers,…

    11 articles · Updated July 16, 2026

Recent Intelligence Reports

  • Nichirei Cyberattack Hits KFC Japan, Disrupts Frozen Food Supply — Thecyberexpress · July 16, 2026
  • KDDI Data Breach Exposes 14.2 Million Managed Email Credentials — Technadu · June 24, 2026
  • KDDI Data Breach May Have Exposed Up to 14.22 Million Email Accounts — Thecyberexpress · June 24, 2026
  • You have got to be KDDI-ng — Theregister · June 24, 2026

CVSS v3.1 Breakdown