Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
Copilot Buttons Missing in Classic Outlook: What Security Teams Need to Know About Microsoft's Known Issue and the Fake-Fix Risk
Introduction Microsoft has confirmed it is still investigating a known issue that causes the Copilot and Copilot Chat buttons to disappear f...
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...
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 ...
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...
Microsoft Copilot Enterprise Removal: Policy Control for Data Governance
Microsoft Copilot Enterprise Removal: Policy Control for Data Governance Introduction Following the April 2026 Patch Tuesday, Microsoft has ...
RoguePilot: How AI Prompt Injection Hijacked GitHub Copilot to Leak Repository Secrets
The integration of Artificial Intelligence into the developer workflow has been a game-changer for productivity, but it has also opened a no...