This 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 GAP
Window 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.
75days open
t1 · Published
t2 · Pending
Indexed by Breach House
August 28, 2026
Disclosed / Notified
Not disclosed yet
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
2 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-23. Verdict evidence: [H6] Status: Disclosed
Proof files published by the operator —
1 image(s) harvested from this entry.
Content is locked; type and dimensions shown.
Capture history —
16 day(s) tracked. Content is locked.
Showing the latest capture only
Unlock the 16 captures already taken, plus the 1 proof file(s) the operator published.
Dark Web Exposure
Findings for hwlochner.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
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••• emails
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••• emails
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••• emails
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•••••••••• · ••••••
••• emails
Full exposure is locked
See every breached email, the internal-vs-external split and each leak source behind this victim.
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