This record tracks a ransomware attack claimed by the
incransom group against
atchadwick.net. 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.
285days open
t1 · Published
t2 · Pending
Business Category
Services
Indexed by Breach House
February 12, 2026
Leak Status
leaked
checked 2026-10-04
Disclosed / Notified
Not disclosed yet
Attack Summary
A.T. Chadwick is a mechanical contracting firm that offers services in plumbing, heating, air-conditioning, refrigeration, process piping, and field management. The company was founded in 1966 and is headquartered in Bensalem, Pennsylvania.
Employees: 500
Revenue: $159.1 Million
Industry: Construction Management
Phone Number: (215) 245-5800
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-04. Verdict evidence: [H19] atchadwick.net 19.02.2026 06:36 … View
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Dark Web Exposure
Findings for atchadwick.net
— indexed by HaveIBeenRansom.
1
found in Infostealer logs
258+
found in Traditional breaches
112+
found in Ransomware leaks
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