killsec
Active since 2024-02-21
Unverified threat-actor claim — not a regulatory filing
Attribution, victim identity, and counts shown here derive from killsec's public extortion-blog claims, aggregated by ransomware.live. They have not been validated by the victim or any regulator. Treat them as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
According to ransomware.live, the group claims:
KillSec originated as a hacktivist group aligned with the Anonymous movement before pivoting to ransomware operations in October 2023, officially launching a RaaS platform in June 2024 with an affiliate-friendly 88% revenue split, primarily targeting healthcare, financial services, and government sectors with over 250 documented victims as of late 2025.
Source: Ransomware.live