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Sanderling Healthcare

sarcoma

This record tracks a ransomware attack claimed by the sarcoma group against Sanderling Healthcare. 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.

328days open
t1 · Published t2 · Pending
Jul 23, 2025Not disclosed yet
Country
United States
Business Category
Healthcare / Pharma
Employees
51-100
Discovered
2025-07-23
Published
July 23, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
HSnqmRHjhmhC

Attack Summary

Sanderling Healthcare Sanderling Healthcare was founded in 2009 by Dr. Jerome S. Tannenbaum to further one of his personal missions for healthcare – to lower the cost, and speed the construction, of healthcare facilities. As a nephrologist and successful entrepreneur, Dr. Tannenbaum had spent years perfecting his dialysis clinic designs. Known for counting every step made by his nurses and patient care technicians, and having developed roughly 100 dialysis clinics across the country, Dr. Tannenbaum perfected the design of the modern day dialysis clinic. Among the many benefits of working with Sanderling, is the peace of mind to know exactly what a new or expanded hospital facility will cost, and when it will be ready for occupancy.Geo: USA - Leak size: 587 GB Archive - Contains: Files,Excahnge,Bases

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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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
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found in Traditional breaches
0
found in Ransomware leaks
Emails exposed
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Full exposure is locked
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Visit Website View Group: sarcoma
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