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[Investigating][Severity: Critical][Ransomware]

Hands Holdings: ransomware attack

Suspicious access detected June 19 was disclosed June 22. The August 25 report confirmed ransomware and potential exposure of current/former staff and dependants' names, addresses, birth dates, contacts and HR data. My Number identifiers may have been viewed, although leakage was not confirmed. No count or secondary misuse was reported; investigation continued.

Disclosed

2026-06-22

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

Timeline

  1. Detected 2026-06-19
  2. Disclosed 2026-06-22
  3. 3 days

Organizations involved

Open in organization search

Sources

  1. [1][Official]当社システムへの不正アクセスの疑いに関するお知らせHands Holdings Co., Ltd. · 2026-06-22
  2. [2][Official]当社システムへの不正アクセスに関するお知らせ(第2報)Hands Holdings Co., Ltd. · 2026-08-25