> JapanHacked_
[Investigating][Severity: Critical][Intrusion]

Trustbank: unauthorized access to Furusato Choice

Attackers accessed member data of Furusato Choice, the hometown tax donation site run by Trustbank, on 17 October. Names, email addresses, addresses, phone numbers, hashed passwords and estimated tax deductions of 4,454,097 member records leaked. Trustbank noticed unusual access on 19 October and stopped the related services at 15:50 that day. It is fixing the vulnerability it found.

Disclosed

2026-10-20

Organizations involved

1

Leaked or at risk

4.5M

4,454,097

Downtime

Unknown

Timeline

  1. Started 2026-10-17
  2. Detected 2026-10-19
  3. Disclosed 2026-10-20
  4. 3 days

Attack or cause

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

Data exposed or at risk

[Name][E-mail address][Postal address][Phone number][Passwords]

Services hit

Organizations involved

Open in organization search

Sources

  1. [1][Official]不正アクセスによる寄附者様情報の外部流出に関するお詫びとお知らせTrustbank · 2026-10-20