Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
iRhythm Data Breach: Defending Healthcare PHI from Extortion and Exfiltration
Introduction In June 2026, cardiac monitoring provider iRhythm Technologies disclosed a significant security incident involving the theft of...
iRhythm Breach: Defending Against Third-Party Application Risks in Healthcare
iRhythm Breach: Defending Against Third-Party Application Risks in Healthcare Impact: Critical | Vector: Third-Party Application Compromise ...
Optimizing CTEM: How Tenable One Continuous Controls Validation Redefines Exposure Management
Introduction In 2026, the volume of vulnerabilities disclosed daily has reached a saturation point, driven significantly by frontier AI acce...
Active Exploitation of Critical Fortinet FortiSandbox Vulnerabilities: Defending the Threat Detection Layer
Active Exploitation of Critical Fortinet FortiSandbox Vulnerabilities: Defending the Threat Detection Layer By Security Arsenal Consultant I...
NIS2 Directive 2026: Operationalizing Compliance and Technical Readiness
Introduction The transition period is over. As we move deeper into 2026, the NIS2 Directive (Directive (EU) 2022/2555) is no longer a theore...
SearchLeak: Microsoft 365 Copilot Enterprise Data Exfiltration — Defense and Detection
Introduction A critical vulnerability chain, dubbed SearchLeak, has been identified in Microsoft 365 Copilot Enterprise, posing a severe ris...
Sniper Dz Social Engineering: Defending Against MENA-Focused Facebook Scams and Browser Alerts
Introduction Security Arsenal is tracking an active campaign dubbed "Sniper Dz," targeting users across the Middle East and North Africa (ME...
Conti Ransomware Affiliate Pleads Guilty: Active Hunt for Conti TTPs and Defensive Mitigations
Conti Ransomware Affiliate Pleads Guilty: Active Hunt for Conti TTPs and Defensive Mitigations Introduction The recent guilty plea by Ukrain...
Outsider Enterprise Takedown: Mitigating AI-Driven PhaaS Operations
Introduction In a significant coordinated action, the FBI, alongside partners at Google and Black Lotus Labs, has successfully dismantled "O...