Ransomware Group
Kraken
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."
Known victims25
Threat level
MEDIUM
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Known infrastructure
The following Tor hidden services have been associated with this group:
Kraken leak blog
These sites are malicious. Open them only from an isolated environment.
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