Asoview: unauthorized access to the satsuki booking system
On 20 May, Asoview detected suspicious outside access to satsuki, the booking system it provides to activity operators. It judged this a cyberattack, and data of 27,163 people who booked through satsuki leaked: names, genders, birth dates, phone numbers, addresses and booking details. No emails, passwords or card data were included.
Disclosed
2026-05-28
Organizations involved
1
Leaked or at risk
27.2K
27,163
Downtime
Unknown
Timeline
- Detected 2026-05-20
- Disclosed 2026-05-28
- 8 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Data leak]
- Entry point
- Unknown
Data exposed or at risk
Services hit
Organizations involved
[Breached][Major]Tokyo, ShinagawaInformation and communications27,163 leaked
Asoview Inc.
Sources
- [1][Official]【お客様各位】弊社システムへのサイバー攻撃による情報流出に関するお詫びとお知らせAsoview · 2026-05-28