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Data Exfiltration Diaries: The Shocking Stories Inside NYC Health + Hospitals
This record tracks a ransomware attack claimed by the
LEAKNET group against
Data Exfiltration Diaries: The Shocking Stories Inside NYC Health + Hospitals. 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.
0days open
t1 · Discovered
t2 · Pending
Business Category
Healthcare / Pharma
Indexed by Breach House
October 15, 2026
Leak Status
pending
checked 2026-10-15
Disclosed / Notified
Not disclosed yet
Attack Summary
Data Exfiltration Diaries: The Shocking Stories Inside NYC Health + Hospitals is a catalog entry describing a ransomware victim within the US healthcare and medicine sector, focused on the organization NYC Health + Hospitals. The listing type identifies the entity as a ransomware victim associated with the threat actor LEAKNET. The title references data exfiltration diaries, indicating the index catalogs concerning patterns of information movement or potential compromise within healthcare infrastructure. This entry serves threat-intelligence consumers seeking structured context on ransomware incidents in US healthcare environments and their connections to identified actors. It neutrally states it was listed as a ransomware victim associated with LEAKNET.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-15. Verdict evidence: [M1] We're currently preparing the full 11TB archive for public release. But raw data is just rows and columns.
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Dark Web Exposure
Findings for nychealthandhospitals.org
— indexed by HaveIBeenRansom.
62
found in Infostealer logs
457+
found in Traditional breaches
180+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Legend Networking & Telecom
play · ransomware
••• emails
500K USA B2B With LINKEDIN and email Full.xlsx
Database World ROC · breach
••• emails
Marcus & Millichap, Inc.
shinyhunters · ransomware
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Database World ROC · breach
••• emails
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