Ransomware victim disclosure
← All victims株式会社ティーエスエヌ (TSN Co., Ltd.)
listed as TSN Co., Ltd. · Claimed by worldleaks · listed 2 months ago
Status timeline
- Listed
Mar 20, 2026
- Data leaked
At a glance
- Group
- worldleaks
- Status
- Data leaked
- Country
- Japan
- Sector
- Not Found
- Listed on leak site
- Mar 20, 2026
About the victim
AI dossier — public-source company profileTSN Co., Ltd. (株式会社ティーエスエヌ) is a Japanese creative services company founded in 1968, headquartered in Tennoji, Osaka, with a branch in Minato, Tokyo. The company provides end-to-end creative solutions—from planning and proposal through production—and also operates a branded desk calendar sales service called 'Calepro'.
- Industry
- Creative Services & Print Production
- Address
- 大阪府大阪市天王寺区味原町13-11-2 味原トータルライフ4階 (Osaka HQ); 東京都港区芝5-31-10 サンシャインビル6階 (Tokyo Branch)
- Founded
- 1968
Attack summary
Severity: medium — Data is listed as published rather than merely announced, suggesting confirmed exfiltration, but no details on data type, volume, or sensitivity are available from the leak post, and the company appears to be a small creative/print services firm without obvious regulated-data holdings.The worldleaks ransomware group has claimed an attack against TSN Co., Ltd. and lists the disclosure status as data_published, indicating exfiltrated data has been released; however, the leak post contains no specific details on the nature or volume of data involved.
Original description
AI-summarised, not from the leak postN/A
Sources
Source
Indexed 2 months agoThis page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.
