Incidents in country:
4 incidents catalogued
Qilin ransomware operators encrypted servers across Asahi's Japanese data centres, halting ordering, shipment, and production at 30 factories, leaking 27 GB of internal data, and exposing personal information of approximately 1.5 million customers, employees, and contacts.
Phishing access let BlackSuit (Russian-linked) encrypt KADOKAWA's infrastructure and the Niconico video-sharing platform, taking services offline for two months. KADOKAWA paid ~$2.9M in cryptocurrency — and BlackSuit leaked the stolen 1.5 TB anyway.
An attack on Toyota plastics-and-electronics supplier Kojima Industries paralysed one server enough to halt production at all 14 of Toyota's Japanese plants — about 13,000 vehicles of daily output — making the case the canonical example of just-in-time manufacturing's cyber-fragility.
Tokyo-based cryptocurrency exchange Coincheck lost 523 million NEM tokens (~$530M at the time) from a hot wallet that had no multi-signature protection. The largest single crypto-exchange theft at the time — later attributed to North Korea's Lazarus Group.