H.W. Lochner
payoutskingThis record tracks a ransomware attack claimed by the payoutsking group against H.W. Lochner. 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
[AI generated] H.W. Lochner is a US-based civil engineering and infrastructure consulting firm. Founded in 1944 and headquartered in Chicago, Illinois, the company specializes in transportation planning, highway design, bridge engineering, environmental services, and construction management. It primarily serves state and local government clients across the United States, supporting public infrastructure projects including roads, transit systems, and related civil works.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.