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Executive facts
Actor
Killsec3
Kind
ransomware
Actor record created
2026-07-23
Latest observed
2026-09-27
Leak-site claims
448
Catalogued techniques
0
Scope
Tracked sectors
Healthcare, Financial Services, Business & Professional Services, Technology, Manufacturing
Claim records
2024-10-28 to 2026-09-27
Vulnerability events linked to this group
No dated vulnerability events are attached to this group's linked vulnerabilities.
Verified techniques
No verified ATT&CK mapping for this group.
Defensive actions
No defensive actions are attached to this profile.
Most-claimed sectorsHealthcareFinancial ServicesBusiness & Professional ServicesTechnologyManufacturing
Activity window in this site's data
This is only the dates observed by this site. It is not this actor's lifetime or evidence of dormancy outside these dates.
Claim records
First observed Latest observed
Verified ATT&CK phases represented
No verified ATT&CK mapping for this group
Origin and motivation
Origin and motivation not attributed.
No MITRE ATT&CK group mapping exists for this actor yet. Mappings here are strict: an actor links to a MITRE group only when the group's own name, aliases, or MITRE-published description match, and MITRE has not catalogued this group. Technique and defensive action data will appear automatically if a verified mapping lands.
Claims posted under this group's name or leak-site brand
448 on this site
(unnamed victim)Sector not stated by sourcesource ↗