This record tracks a ransomware attack claimed by the
akira group against
Priester Aviation. 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.
477days open
t1 · Published
t2 · Pending
Business Category
Communication / Marketing
Indexed by Breach House
September 30, 2025
Disclosed / Notified
Not disclosed yet
Attack Summary
Priester Aviation is a leading provider of aircraft management an
d private jet charter services, based in Chicago, IL, and operati
ng with nearly 200 years of combined experience in the industry.
We are going to upload 124gb of corporate data. HUUUUUGE amount o
f employees (and their relatives) personal documents (passports,
DLs and other docs with complete person information, medical test
and other medical docs), crew personal documents, financials inf
ormation, a bit of customer information, aircraft maintenance inf
ormation, confidential contracts and agreements, numerous NDAs, e
tc.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-01. Verdict evidence: [akira/terminal] Priester Aviation
Showing the latest capture only
Unlock the daily capture history — up to 45 days of evidence.
Dark Web Exposure
Findings for priesterav.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
1,058+
found in Traditional breaches
113+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Access Intelligence
play · ransomware
••• emails
Database World ROC · breach
••• emails
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