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ReportedUpdated 3 Nov 2026

Sony So-net data breach

Data breach1 source
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What happened

Hackers have stolen the personal information of current and former So-net and Plala internet subscribers in Japan, Sony Network Communications announced on October 27. Nearly 2.6 million records were impacted.

Reported impact

An affected population has not been established in the accepted evidence.

Attack method
unauthorized access by a third party

Source evidence

1

Read the original reporting and statements. Multiple articles may rely on the same underlying source.

SecurityWeek01

Hackers Steal 2.6 Million Records From Sony's Japanese ISP So-net - SecurityWeek

Published 29 Oct 2026Retrieved 3 Nov 2026

The stolen information includes names, dates of birth, gender, phone numbers, email addresses, user IDs, and the IDs customers use to connect to the internet.

Attributed reporting

1 more excerpt
The attackers broke into the So-net member database on October 19.

Attributed reporting

Updates and corrections

  1. Revision 1

    Incident updated.