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

Ukraine's Computer Emergency Response Team (CERT) says that Russian hackers are exploiting CVE-2026-21509, a recently patched vulnerability in multiple versions of Microsoft Office.

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

Russia-linked hacking group Fancy Bear is exploiting a brand-new vulnerability in Microsoft Office, CERT-UA says ...

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

To exploit the vulnerability, an attacker would need either system access or be able to convince a user to open a malicious ...

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

Microsoft has patched a vulnerabilitz in Copilot Personal that allowed hackers to steal sensitive user data through a single ...

Microsoft has patched 112 vulnerabilities in January 2026, including CVE-2026-20805, a Desktop Window Manager zero-day that ...

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