Breaches and incidentsBriefReported by a reputable outlet, citing the company
Sony Network Communications (So-net, plala/Docomo Hikari): member database accessed, 2.59 million records
Sony said the So-net member database “was accessed by an unauthorized party” on 19 Oct 2026, detected four days later.
- Disclosed
What happened
- Sony said the So-net member database “was accessed by an unauthorized party” on 19 Oct 2026, detected four days later: 2,585,481 records (2,141,986 So-net and 443,495 plala S Course records for NTT Docomo’s Docomo Hikari) with names, phone numbers, emails, user IDs, dates of birth, gender and connection IDs; plus 54,401 email addresses exposed with account passwords. No banking or card data.
- Root cause: under investigation.
- No attacker named.
- Servers shut down; PPC notified; users told to change passwords.
Sources
- https://www.bleepingcomputer.com/news/security/sony-isp-subsidiary-data-breach-exposes-25-million-customer-records/
- https://www.privacyguides.org/news/2026/10/30/data-breach-roundup-oct-23-oct-29-2026/
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