Science & Tech · Cybersecurity · 4 hrs ago
KDDI warns data from up to 22,000 customers may have leaked
KDDI says information from up to about 22,000 customers may have leaked after unauthorized access to a system used by its partner, Lifenet Life Insurance.
The affected information may include customers’ names and email addresses.
A vulnerability in Lifenet’s system was identified as the cause of the incident.
KDDI and Lifenet work together to sell life insurance, which is why KDDI customer information was held in the partner’s system.
No misuse of the information has been confirmed so far, according to the announcement.
The companies have not stated what steps they will take next.
KDDI said information about as many as 22,000 customers may have been leaked.
The company said the incident followed unauthorized access to a system operated by Lifenet Life Insurance, its partner in selling life insurance.
The information may include customers’ names and email addresses.
No misuse of the information had been confirmed at the time of the report.
- Who
- KDDI customers may have been affected. The system accessed belonged to Lifenet Life Insurance, a KDDI partner.
- What
- Personal information for up to about 22,000 customers may have leaked.
- When
- KDDI announced the possible leak on October 30, 2026.
- Where
- In a Lifenet Life Insurance system.
- Why
- The system had a vulnerability that led to unauthorized access.
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- Possible affected records
- Up to about 22,000
- Information potentially exposed
- Names and email addresses
- System operator
- Lifenet Life Insurance
- Announcement date
- October 30, 2026
- Misuse confirmed
- None at the time of the report