Byer-Nichols Threat Brief for November 1-15 2025

One of the most concerning developments over this period has been the discovery of "zero-click" vulnerabilities in Samsung mobile devices, which have already been actively exploited by the Landfall spyware. We have also seen a newcomer in the ransomware space – Kazu, which a group focused on data theft. Meanwhile, Akira, a perennial ransomware actor is now believed to have made over $244 million from its malicious activities.