This record tracks a ransomware attack claimed by the
akira group against
Concord Management Services. 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.
725days open
t1 · Published
t2 · Pending
Business Category
Services
Indexed by Breach House
September 25, 2024
Leak Status
pending
checked 2026-09-21
Disclosed / Notified
Not disclosed yet
Attack Summary
Concord Management Services LLC is a company that operates in the
Architecture, Engineering & Design industry. 23Gb of data will b
e uploaded soon. There are files of 2 more companies inside the a
rchive. We got detailed personal employee information SSNs, addre
sses, phones etc. Numerous financial files, agreements and other
business files will be available soon as well.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-21. Verdict evidence: [akira/terminal] Concord Management Services
Showing the latest capture only
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Dark Web Exposure
Findings for concordny.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
2
found in Traditional breaches
9
found in Ransomware leaks
Engie Resources
shinyhunters · ransomware
••• emails
Cushman & Wakefield Inc.
shinyhunters · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
PENS.COM
clop · ransomware
••• emails
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