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Avalon Hills

sinobi

This record tracks a ransomware attack claimed by the sinobi group against Avalon Hills. 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.

149days open
t1 · Published t2 · Pending
Jan 18, 2026Not disclosed yet
Country
United States
Business Category
Finance / Legal / Insurance
Employees
51-100
Discovered
2026-01-19
Published
January 18, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
rSexrKkmazDZ

Attack Summary

The Avalon Hills business staff work behind the scenes to help manage all aspects of the program. They route calls, assist with travel plans for clients and families, track all things financial, keep all of the technical machines purring and whatever else it takes to keep a busy program in business! The financial office and utilization review team partners with families to help them access and maximize their insurance benefits. This requires the dedication of families to expand the financial resources available to them for treatment. We help those struggling with an eating disorder recover through a combination of the best, tried-and-true traditional psychotherapies and applied neuroscience, including the latest discoveries about human brain plasticity. Prior to arriving at Avalon Hills, our 21 year-old daughter struggled with a life-threatening eating disorder for over 4 years.

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
0
found in Traditional breaches
0
found in Ransomware leaks
Emails exposed
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External
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Full exposure is locked
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Visit Website Original Post View Group: sinobi
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