> JapanHacked_
[Contained][Severity: Major][Intrusion]

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

  1. Detected 2026-05-20
  2. Disclosed 2026-05-28
  3. 8 days

Attack or cause

Method
[Intrusion]
Impact
[Data leak]
Entry point
Unknown

Data exposed or at risk

[Name][Gender][Date of birth][Phone number][Postal address]

Services hit

Organizations involved

Open in organization search

Sources

  1. [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