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

Junkosha: ransomware attack

Server encryption and disruption were identified on January 22 and disclosed January 24. March's findings identified entry through network equipment into internal systems and a cloud file-management tool, with possible theft of staff and customer information. No secondary harm was confirmed; account resets and stronger monitoring were implemented.

Disclosed

2025-01-24

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

Timeline

  1. Detected 2025-01-22
  2. Disclosed 2025-01-24
  3. 2 days

Attack or cause

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

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][Official]ランサムウェア攻撃によるシステム障害についてJunkosha Inc. · 2025-01-24
  2. [2][News]潤工社、ランサムウェア感染による情報漏えいの可能性を発表USEN ICT Solutions · 2025-04-01