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[Investigating][Severity: Major][Ransomware]

Raymay Fujii: ransomware encrypted files on some servers, and it suspended servers, its intranet and other systems

Ransomware encrypted files on some servers and it suspended servers and its intranet to respond. The ransom note did not mention a leak site.

Disclosed

2025-08-18

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. Ransomware encrypted files on some of its servers. [3]

  2. It announced the unauthorized access by a third party. It suspended servers, its intranet and other systems to respond. [1]

  3. It issued a second report. It is working with outside experts to investigate the scope and recover. [2] [3]

Impact

Servers and the intranet were suspended. The coverage consulted says the ransom note contained no reference to a leak site. It does not say whether data leaked or how much. [1] [3]

Timeline

  1. Started 2025-08-09
  2. Disclosed 2025-08-18
  3. 9 days

Attack or cause

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

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][News]レイメイ藤井に不正アクセス、被害対応のためサーバやイントラネット等を休止ScanNetSecurity · 2025-08-27 08:05
  2. [2][Official]当社サーバーにおける第三者からの不正アクセスの発生について(第二報)Raymay Fujii Corporation · 2025-09-10
  3. [3][News]脅迫文にリークサイトに関する記述無し ~ レイメイ藤井へのランサムウェア攻撃ScanNetSecurity · 2025-09-24 08:05