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Travel and booking

Tosho Kaikan Booking

Tosho Kaikan Booking (run by Tokyo Islands Association of Towns and Villages) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-11-04.

About the service

Website

https://www.tosho-kaikan.jp/

Run by

Tokyo Islands Association of Towns and Villages

Category

Travel and booking

For

People

Incident history

Disclosed 2026-11-04Updated 2026-11-06 21:01Nagano, Osaka, Tokyo[Investigating][Severity: Critical][Through a supplier][Major]
Navac: RESERVE GATE alpha breach affects up to about 350,000 booking-member records
[Web app exploit][Data leak][Service outage]Leaked 350KOrganizations 4

		Incident	Role	Impact level				Methods	Impacts		Status
2026-11-04	2026-11-06 21:01	Navac: RESERVE GATE alpha breach affects up to about 350,000 booking-member records	[Through a supplier]	[Major]	[Critical]	4 Navac Inc., Chuo Alps Kanko Co., Ltd., Osaka Corona Hotel Inc., Tokyo Islands Association of Towns and Villages	Nagano, Osaka, Tokyo	[Web app exploit]	[Data leak][Service outage]	350,000	[Investigating]