Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
Swiss Government SharePoint Breach: 200 Accounts Compromised — Detection and Hardening Guide for On-Prem SharePoint Defenders
Swiss Federal SharePoint Breach: What Happened and Why It Matters Switzerland's federal IT office has confirmed that attackers exploited sec...
Fake Bank of America Phishing Drops Malicious ScreenConnect RMM: Detection, Hunting, and Removal Guide
Introduction A newly reported social engineering campaign is impersonating Bank of America to push victims into downloading and executing a ...
Ransom Cartel Ransomware Creator Sentenced to 16 Years — Defensive Lessons and Detection Guide for Enterprise SOCs
Introduction Maksim Silnikau, the creator and administrator of the Ransom Cartel ransomware operation, has been sentenced to 16 years in pri...
New XCSSET macOS Variant: Defending Against Compromised Xcode Projects
Introduction Security Arsenal is actively tracking a significant resurgence of the XCSSET malware, specifically engineered to target macOS d...
Liechtenstein Register Breach: Defending Against Beneficial Ownership Data Exfiltration
Introduction A significant cyberattack on Liechtenstein’s Register of People Behind Companies and Foundations has resulted in the compromise...
Midnight Blizzard Hotel Wi-Fi Attacks: Defending Microsoft 365 Accounts Against Custom Malware
Introduction Microsoft has confirmed a sophisticated campaign orchestrated by the Russian state-sponsored threat actor Midnight Blizzard (AP...
River Bank Ransomware Incident: Detecting Data Wiping and Encryption Tactics
River Bank Ransomware Incident: Detecting Data Wiping and Encryption Tactics Introduction River Bank, a prominent bank holding company, rece...
DevOps Breach Response: Detecting Jira and GitLab Exfiltration in the Wake of Żabka Alleged Leak
Introduction On August 2, 2026, a previously unseen forum actor listed what they claim is a complete data dump belonging to Żabka Polska, Po...
Adform Supply-Chain Compromise: Crypto-Clipboard Hijacking Defense
Introduction A critical supply-chain attack has impacted Adform, a prominent online advertising platform. Attackers successfully compromised...