Kraken is a Russian-speaking ransomware group that emerged in February 2025, evolving from the remnants of the HelloKitty ransomware cartel. This financially motivated group employs a double extortion model and distinguishes itself through the unique characteristic of benchmarking victim systems to optimize encryption speed and efficiency before initiating an attack. Kraken has demonstrated cross-platform capabilities, deploying ransomware variants specifically designed for Windows, Linux, and VMware ESXi environments.

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