Cyberattack at Japan’s Largest Mobile Carrier, NTT Docomo

Japan’s largest mobile carrier, NTT Docomo, reported a cyberattack temporarily disrupted operations. Its system were targeted by a distributed denial-of-service (DDoS) attack.
From early Thursday morning until late afternoon, local users were unable to access NTT Docomo’s news website, video streaming platform, mobile payment and webmail services. The company reported that access to most services had been restored late afternoon, although some content updates might still face delays.

Estimated Cost

No cost values disclosed.

Threat Source

Impacts

IT