Tokyo DispatchJapan, in EnglishThe parent company's chief executive said sorry at a half-year earnings briefing after unauthorized access to three booking sites exposed names and addresses, and a separate breach at an email contractor exposed about 28,000 addresses.
The National Police Agency and all 47 prefectural forces will investigate cyberattacks together, with a separate team formed for the breach at a GMO Internet cloud service.
The government approved a package of emergency cybersecurity measures on Friday, including a unit of specialists to help hacked organizations and a push to define the legal footing for active cyber defense.
The company's mail system for internet providers was breached on June 23, and its president told an earnings briefing that KDDI kept running an old system despite the scale of the leak.
The National Cybersecurity Office says it found multiple cases where basic safeguards were missing, and that AI is likely helping attackers find weak systems at scale.
