Japanese railway operators Keio Corporation and Tokyo Metro disclose security breaches
Keio, a major Japanese railway operator, was hit by ransomware, disrupting business systems and forcing the company to shut down its network. Keio Corporatio...
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Japanese railway operator Keio hit by ransomware attack
The ransomware attack, which occurred in the early hours of Saturday, September 26, 2026, appears to have primarily affected Keio's hospitality business, inc...
Japanese Railway Operators Hit with Weekend Cyber Attacks
Tokyo Metro and Keio have revealed separate cyber-attacks