Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
Microsoft Copilot for Word Self-Replicating Prompt Injection: Detection and Mitigation
Introduction On July 28, 2026, researcher Håkon Måløy disclosed a critical manipulation technique affecting Microsoft 365 Copilot within Wor...
Microsoft 365 Outage: Technical Analysis of the Automated Maintenance Routing Bug
Introduction On [Current Date 2026], organizations worldwide experienced significant disruptions to Microsoft 365 and Azure services. This w...
Hotel Wi-Fi DNS Hijacking: Defending Against Microsoft 365 Credential Harvesting
Introduction Business travelers are facing a renewed and sophisticated threat at the network edge. Recent intelligence confirms that attacke...
CVE-2026-50517: M365 Copilot RCE via Deserialization — Defense and Hardening Guide
Introduction Today, the NVD published CVE-2026-50517, assigning it a CVSS score of 9.9 (CRITICAL). This vulnerability affects Microsoft 365 ...
HollowGraph Malware: Detecting Microsoft Graph API Abuse in M365 Calendars
Introduction The democratization of cloud services has fundamentally shifted the threat landscape. We no longer face just malware that exfil...
HollowGraph C2: Detecting Microsoft 365 Graph API Abuse via Future-Dated Calendar Events
Introduction Security operations teams must adapt to a sophisticated new evasion technique observed in the wild. Researchers at Group-IB hav...
Kratos PhaaS Microsoft 365 Credential Theft: OTX Pulse Analysis — Enterprise Detection Pack
Kratos PhaaS Campaign Targets Microsoft 365: US and EU Under Siege Threat Summary Recent intelligence from the AlienVault OTX community indi...
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...
DEBULL Tooling: Microsoft 365 Device Code Flow Attack - Detection and Mitigation
Introduction Security teams are actively contending with a sophisticated social engineering campaign codenamed "DEBULL" that is hijacking Mi...