CYBERSECURITYTRACKER
Incidents

Killsec

Review this actor's tracked leak-site claims, published reporting, and attributed threat evidence.

ransomware68 leak-site claims, all timeLatest observed leak-site post 2026-09-18

Portable threat brief

Killsec

Facts from stored data only; no AI-written text.

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Executive facts

Actor
Killsec
Kind
ransomware
Actor record created
2026-07-23
Latest observed
2026-09-18
Leak-site claims
68
Catalogued techniques
0

Scope

Tracked sectors
Financial Services, Healthcare, Government, Transportation & Logistics, Insurance
Claim records
2024-03-21 to 2026-09-18

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 sectorsFinancial ServicesHealthcareGovernmentTransportation & LogisticsInsurance
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
68 on this site
View all on Breaches →
Leak-site claim activity

Claims per month, 2024-03 to 2026-09. Peak 22 in 2024-10.

2024-032026-09
Show monthly counts as a table
MonthClaims
2024-034
2024-041
2024-052
2024-060
2024-073
2024-0815
2024-0916
2024-1022
2024-110
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-073
2026-081
2026-091

0 additional claims without a disclosure date

Ransomware claim data is unverified: RansomLook (CC BY 4.0) and ransomware.live (Terms of use: credit and link required).

Glossary