Ransomware group aurora hits ARX Group SA
ARX Group SA — a other target operating in CH has been listed by the aurora ransomware group on 2026-10-23. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.
Incident Report
| Target Organization | ARX Group SA |
|---|---|
| Threat Group | aurora |
| Summary | ARX Group SA, a other organization in Switzerland, was listed by the aurora ransomware group on its leak site on 2026-10-23. |
| Date of Breach | 2026-10-23 |
| Discovery Date | 2026-10-23 |
| Region | CH |
| Target Domain | ARX Group SA |
| Business Sector | Other |
| Severity | MEDIUM |
Claim by aurora
[consultancies, engineering] ARX Group SA — one of Switzerland's premier engineering consultancies, with 25+ offices in 17+ countries, known for iconic projects including the Ceneri Base Tunnel and dozens of USTRA/SBB federal infrastructure contracts. The exposed material includes: <redacted> <redacted> 9,510 project fee structures with internal/external billing rates for every engineer — the complete pricing intelligence for one of Switzerland's largest infrastructure consultancies. <redacted> <redacted> 8 GB of Ceneri Base Tunnel documentation — as-built engineering records for Swiss national critical infrastructure. 881,205 time entries spanning years of daily work activity for every employee, with task descriptions and project assignments.
Posted by the aurora threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.
Sources
Victim website
ARX Group SA
Leak post (onion / Tor)
http://u6lieui2dakbctcjea2bz4r4q32r7t36nwljovqbv7mxs6o2smgxixid.onion/blog/arx-group-sa-28b9fe22
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Disclaimer
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