ESET APT Activity Report Q4 2025–Q1 2026
ESET ResearchThreat Reports An overview of the activities of selected APT groups investigated and analyzed by ESET Research in Q4...
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Cybercrime Groups Using Vishing and SSO Abuse in Rapid SaaS Extortion Attacks
Ravie LakshmananMay 01, 2026Malware / Social Engineering Cybersecurity researchers are warning of two cybercrime groups that are carrying out "rapid,...
Germany Doxes “UNKN,” Head of RU Ransomware Gangs REvil, GandCrab
An elusive hacker who went by the handle “UNKN” and ran the early Russian ransomware groups GandCrab and REvil now...
China-Linked groups target Southeast Asian government with advanced malware in 2025
China-Linked groups target Southeast Asian government with advanced malware in 2025 Pierluigi Paganini March 30, 2026 China-linked groups hit a...
Initial access techniques used by Iran-based threat actors
Iranian‑linked threat groups often use a core set of initial access methods. The threat actors favor cost-effective, repeatable intrusion techniques...
Eeny, meeny, miny, moe? How ransomware operators choose victims
Counter Threat Unit™ (CTU) researchers are frequently asked about ransomware groups posing a threat to organizations in specific verticals or...