> JapanHacked_Cybersecurity incidents in Japan

Company

Rakuten Books Network Inc.

Rakuten Books Network Inc. (Bunkyo, Tokyo; Wholesale and retail trade) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-08-21.

Profile

Industry/type: Wholesale and retail trade
Location: Tokyo, Bunkyo
Website: https://www.rakuten-booksnetwork.co.jp/

Public figures

–

Metric	Value		As of	Source
–

Incident history

Disclosed 2026-08-21Updated 2026-10-27 20:08Tokyo[Contained][Severity: Major][Breached][Major]
Rakuten Books Network: intruders reach work PCs holding 33,333 Rakuten Books delivery addresses
[Intrusion][Data leak]Leaked 33.3KOrganizations 2

		Incident	Role	Impact level				Methods	Impacts		Status
2026-08-21	2026-10-27 20:08	Rakuten Books Network: intruders reach work PCs holding 33,333 Rakuten Books delivery addresses	[Breached]	[Major]	[Major]	2 Rakuten Books Network Inc., Rakuten Group, Inc.	Tokyo	[Intrusion]	[Data leak]	33,333	[Contained]