kraken
Active since 2024-02-12
Unverified threat-actor claim — not a regulatory filing
Attribution, victim identity, and counts shown here derive from kraken'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:
Kraken is a Russian-speaking ransomware group that emerged in February 2025, believed to have links to the HelloKitty operation, employing a RaaS model notable for a benchmarking step that measures victim machine speed to optimize encryption, and in September 2025 launched an underground criminal forum called "The Last Haven Board."
Source: Ransomware.live