This record tracks a ransomware attack claimed by the
Vortex group against
Andersen Construction. 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.
53days open
t1 · Published
t2 · Pending
Business Category
Construction / Real Estate
Indexed by Breach House
November 10, 2026
Leak Status
pending
checked 2026-11-10
Disclosed / Notified
Not disclosed yet
Attack Summary
Andersen Construction operates within the US construction and real estate sector, providing construction services and associated project-based offerings. As a ransomware victim listed in the threat-intelligence index, the entity is documented in connection with the Vortex threat actor, highlighting exposure within the construction industry to cyber threats. This entry serves as a reference point for monitoring security postures, incident correlations, and sector-specific risk patterns relevant to construction and real estate organizations. The listing type underscores the nature of the recorded relationship without disclosing unconfirmed incident specifics.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-11-10. Verdict evidence: [H10] [RISKS] Providence St. Vincent (conservative case accounted) · Benson Claim Negotiations
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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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Full exposure is locked
See every breached email, the internal-vs-external split and each leak source behind this victim.
Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house only records what the operators themselves publish in the
open. We take screenshots of their public pages and keep the proof
material they post there, so that a listing can be verified and its status
tracked over time. We do not purchase data, we do not solicit or encourage
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