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In August 2025, Cisco Talos observed big-game hunting and double extortion attacks carried out by Kraken, a Russian-speaking group that has emerged from the remnants of the HelloKitty ransomware cartel. Learn More
Cisco Talos has confirmed that ransomware operators are leveraging Velociraptor, an open-source digital forensics and incident response (DFIR) tool. Learn More
A simple yet effective tactic, known as hidden text salting, is increasingly used by cybercriminals over the past few months to evade even the most advanced email security solutions, including those powered by machine learning and large language models. Learn More
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