Sony Network Communications breach exposes 2.58M+ So-net and plala customer records

TechNadu · x · 2026-10-28

Sony Network Communications disclosed a breach affecting 2,585,481 customer records across its Japanese ISP services So-net and plala, including 54,401 email-and-password pairs and 16 bank account records. Unauthorized access occurred Oct. 19 but went undetected for eight days until Oct. 27. No threat actor has claimed responsibility; Sony issued a formal apology and is notifying affected users as investigations continue.

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