Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
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opsec4 articles
Jul 18, 2026
Ransomware Attribution and OPSEC Hygiene: Analyzing the REvil Ermakov Case
Introduction The recent detention of a Russian tourist in Armenia, based on a U.S. extradition request for an individual sharing the name of...
sigma-rulekql-detectionthreat-hunting
Incident ResponseRead Now
Jul 16, 2026
Defending Against Chrome Sync Stalking and Game Cheat Supply Chain Attacks
Introduction This week’s ThreatsDay roundup is a stark reminder that the most dangerous attacks often hide in plain sight. We are seeing a s...
sigma-rulekql-detectionthreat-hunting
SOC & MDRRead Now
Jul 13, 2026
Misconfigured Infrastructure Exposes Evilginx Operations: Defending Against Microsoft 365 AiTM Phishing
Introduction In a stark reminder that operational security (OPSEC) failures affect even the adversary, French security firm Lexfo discovered...
managed-socmdrsecurity-monitoring
SOC & MDRRead Now
Jun 29, 2026
WhatsApp Usernames: Operational Security Upgrade Against OSINT and Targeted Attacks
WhatsApp Usernames: Operational Security Upgrade Against OSINT and Targeted Attacks Introduction On Monday, WhatsApp officially initiated th...
sigma-rulekql-detectionthreat-hunting
Platform & AutomationRead Now