KDDI security incident history
Hacking, data breaches and other security incidents involving KDDI, with related coverage.
Up to 22,541 KDDI customer records may have leaked
↳ Knock-on damage from the Lifenet Insurance incident · View original incident22.5kImpact: Possible leak of up to 22,541 customer records
Unauthorised access to Lifenet Insurance's system linked to KDDI led to the confirmed possibility that up to 22,541 KDDI customer records leaked. The data concerned includes names, postcodes, phone numbers, email addresses and member IDs, plus gender and date of birth for some customers. The two companies blocked the access route and suspended some functions, such as accepting applications for au Life Insurance.
Related reports: 4 · last report →Japan's KDDI hack leaks data of more than 12 million people
12mImpact: More than 12 million people affected; up to 12.23 million email addresses and 7.61 million passwords leaked
The email system of Japanese telecoms operator KDDI was hacked, affecting more than 12 million people whose personal data was leaked. Initially, the possible leak of up to 14.22 million customer records was raised, and later the scale of the leak was reported as up to 12.23 million email addresses and 7.61 million passwords. Vulnerabilities in a partner's software and in the internet service delivery system were identified as the starting point of the attack.
Related reports: 7 · last report →