Dellner Couplers AB
ransomhouseThis record tracks a ransomware attack claimed by the ransomhouse group against Dellner Couplers AB. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
Dellner Couplers AB is a Sweden-based manufacturer of train connection systems for the rail sector, headquartered in Falun, Sweden. The company designs, manufactures, and services couplers, gangways, dampers, and related train systems for rail manufacturers and operators worldwide. Its offerings support safety-critical passenger rail applications and global maintenance needs. It was listed as a ransomware victim associated with ransomhouse.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.