Microsoft rushed an emergency Patch Tuesday fix after a new Office zero-day began spreading in active attacks. CISA warns ...

Microsoft has released emergency security updates to patch a high-severity Office zero-day vulnerability exploited in attacks ...

Microsoft released patches for CVE-2026-21509, a new Office zero-day vulnerability that can be exploited to bypass security ...

Varonis Threat Labs has published a report detailing a now patched security exploit discovered in Copilot that let attackers steal data with a single-click.

Microsoft releases an urgent out-of-band update for a critical Office zero-day flaw already exploited in real-world attacks.

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Update, August 10, 2025: This story, originally published on ...

Discover four key identity and access priorities for the new year to strengthen your organization's identity security ...

Microsoft has released Security Baseline v2512 for Microsoft 365 Apps with enhanced Excel and PowerPoint protections, blocking unsafe external links and legacy automation components.