Bookoff Group Holdings Ltd.

DISCLOSED 2026-10-10 · UNKNOWN · 6,000,000 RECORDS EXPOSED

Japanese retailer Bookoff Group Holdings Ltd. and East Japan Railway Co. announced a possible data breach on Friday. Each company suspects unauthorized access to their servers may have leaked over 6 million customer records. The incidents are the latest in a series of data breaches in Japan.

The record

What we know

Disclosed

2026-10-10

Sector

retail

Country

Japan

Records exposed

6,000,000

Data classes exposed

customer information

Sources

Cited reporting

↗ english.kyodonews.net

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