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Listed on a ransomware leak site

ARX Group SA

ARX Group SA was listed on the Aurora leak site on Oct 23, 2026. Information as of Oct 23, 2026.

Updated continuously · figures as of Oct 23, 2026
Claimed by
Aurora
First listed
Oct 23, 2026
Claims recorded
1

Leak-Site Claim.

AuroraConfirmed claim
Posted on the leak site
Oct 23, 2026
Collected by Brandefense
Oct 23, 2026
Data claimed
Not stated
Leak-site post text, written by the group
[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: 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. 8 GB of Ceneri Base Tunnel documentation, as-built engineering records for Swiss national critical infrastructure. 881,205 time…

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Other confirmed victims claimed by the same group
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Allmand-Smith LimitedAuroraGBUnited KingdomManufacturingNot stated
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Adams Warehouse & Delivery, Inc.AuroraUSUnited StatesTransportation and LogisticsNot stated
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The Buckner Company, Inc.AuroraUSUnited StatesEducation and ResearchNot stated
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Brain CipherUSUnited StatesEducation and Research70 GB

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Figures as of Oct 23, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.