YAC Holdings: its consolidated subsidiary YAC Garter was hit by ransomware, with the effect on consolidated results expected to be minor
YAC Garter, a consolidated subsidiary of Tokyo Prime-listed YAC Holdings, was hit by a ransomware attack.
Disclosed
2025-11-26
Organizations involved
2
Leaked or at risk
Unknown
Downtime
Unknown
What happened
YAC Garter announced the ransomware attack on itself, and YAC Holdings announced the ransomware damage at its consolidated subsidiary. [1] [2]
Timeline
- Disclosed 2025-11-26
- 1 days
Attack or cause
- Method
- [Ransomware]
- Impact
- Entry point
- Unknown
Data exposed or at risk
–
Supply chain
- Organizations listed on this site
- 2
Organizations involved
[Breached][Moderate]Tokyo, OmeManufacturing
YAC Garter Co., Ltd.[Through a supplier][Moderate]Tokyo, AkishimaManufacturing
YAC Holdings Co., Ltd.Parent company. It announced the damage at its consolidated subsidiary and expects the effect on consolidated results to be minor.
Sources
- [1][News]ワイエイシイガーターにランサムウェア攻撃ScanNetSecurity · 2025-12-12 08:05
- [2][News]連結業績に及ぼす影響は軽微である見込み ～ ワイエイシイホールディングス連結子会社でランサムウェア被害ScanNetSecurity · 2025-12-12 08:05