This record tracks a ransomware attack claimed by the
medusalocker group against
ATCO Ltd. 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.
0days open
t1 · Published
t2 · Pending
Indexed by Breach House
September 28, 2026
Leak Status
pending
checked 2026-09-28
Disclosed / Notified
Not disclosed yet
Attack Summary
mail.gmail.com is the primary mail server domain for Gmail, delivering email communication services to individuals and organizations worldwide as part of Google’s cloud ecosystem. The service operates within the information technology sector and maintains infrastructure that supports secure messaging, spam filtering, and integration with Google Workspace applications. It is associated with Canada in the threat‑intelligence index, reflecting regional attribution for the observed activity. The listing identifies the domain as a ransomware victim tied to the MedusaLocker threat actor, without implying confirmation of data loss or ransom payment.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-28. Verdict evidence: [H9] ⚠ Demo access — showing up to 10 files per folder. Full data will be available after publication.
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Dark Web Exposure
Findings for mail.gmail.com
— indexed by HaveIBeenRansom.
127
found in Infostealer logs
157,117
found in Traditional breaches
0
found in Ransomware leaks
Condere Ip, Infracom Group
play · breach
••• emails
29 Leaks
ddosecret · breach
••• emails
IntelXPasteScrape_BF.7z
Database World ROC · breach
••• emails
HBGary
ddosecret · breach
••• emails
IntelXPasteScrape_BF.7z
DBs Backup · breach
••• emails
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