This record tracks a ransomware attack claimed by the
AuditTeam group against
Demidov Steel Group. 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.
18days open
t1 · Published
t2 · Pending
Business Category
Manufacturing / Engineering
Published
August 18, 2026
Leak Status
leaked
checked 2026-09-01
Disclosed / Notified
Not disclosed yet
Attack Summary
Demidov Steel Group (ГК Демидов) is a Russian metal products manufacturer and trader, website: demidovsteel.ru. The company owns its own plants (Ryazan, Davlekanovo, Novocherkassk, and others), sells wholesale and retail, and supplies 4,000+ products including steel pipes, structural shapes, sheet metal, and rebar, along with processing services such as cutting and galvanizing, plus delivery. Its network covers Moscow and more than a dozen other cities. The company has been in business for over 20 years and serves construction and industrial clients.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-01. Verdict evidence: [M1] The complete acquired data archive is now available.
Capture history —
4 day(s) tracked. Content is locked.
Showing the latest capture only
Unlock the 4 captures already taken.
Dark Web Exposure
Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
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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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