This record tracks a ransomware attack claimed by the
thegentlemen group against
Markisol. 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.
5days open
t1 · Published
t2 · Pending
Business Category
Services
Indexed by Breach House
September 26, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
markisol.se operates within the Services sector and is located in Sweden. The entity is cataloged in this threat-intelligence index as a ransomware victim linked to thegentlemen, a threat actor identified in cyber threat reporting. This listing reflects the association between the entity and the ransomware activity attributed to thegentlemen, without disclosing unverified technical findings, data exfiltration details, ransom terms, or confirmed breach specifics. The record provides context for threat actors, sector exposure, geographic location, and incident classification within the index. Publicly available information regarding markisol.se does not confirm an official first-party breach notification date, so the notify_date field remains empty pending verified company disclosure.
Leak Screenshots
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Dark Web Exposure
Findings for markisol.se
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
15
found in Traditional breaches
1
found in Ransomware leaks
148GB (43).txt
DBs Backup · breach
••• emails
148GB (84).txt
DBs Backup · breach
••• emails
148GB (72).txt
DBs Backup · breach
••• emails
148GB (44).txt
DBs Backup · breach
••• emails
148GB (19).txt
DBs Backup · breach
••• emails
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