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Greater Mental Health of New York

sinobi

This record tracks a ransomware attack claimed by the sinobi group against Greater Mental Health of New York. 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.

316days open
t1 · Published t2 · Pending
Oct 20, 2025Not disclosed yet
Country
United States
Business Category
Healthcare / Pharma
Employees
51-100
Discovered
2025-10-20
Published
October 20, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
1H2zG7Ph3bcD

Attack Summary

Greater Mental Health of New York is the new name of the merged entity of The Mental Health Association of Westchester and The Mental Health Association of Rockland, two agencies who have a long history of collaboration and a shared mission and ethos for promoting mental health throughout the Hudson Valley region.

Leak Screenshots

SAMPLE

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finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for greatermentalhealth.org — indexed by HaveIBeenRansom.
0
found in Infostealer logs
1
found in Traditional breaches
0
found in Ransomware leaks
National Railroad Passenger Corporation (amtrak.com)
shinyhunters · breach
••• emails
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