Company Reports Progress Restoring Ordering Systems After Ransomware Infection
Summary
The company says unauthorized access and ransomware disrupted its ordering systems. Wholesale ordering resumed May 18 for most partners; retailer services 楽譜ナビ and 注文くん are being restored feature by feature as of May 27.
Key points
- The company reported that unauthorized access and ransomware infection of its servers disrupted normal ordering.
- Wholesale ordering resumed on May 18, except for some business partners.
- Retailer services 楽譜ナビ and 注文くん are being restored in stages, feature by feature.
- The update, dated May 27, provides no details about the access method, affected data, or ransomware actor.
Article Details
- Victim Organization
- Not disclosed
- Victim Domain
- corp.musenet.co.jp
- Incident Type
- Unauthorized access to servers and ransomware infection
- Disclosure Date
- 2026-05-09
- Operational Impact
- The incident made normal ordering unavailable. The ordering system was restored by May 18 for all but some business partners. Retailer services 「楽譜ナビ」 and 「注文くん」 were being restored and reopened by function.
- Claim Status
- confirmed