Microsoft’s latest Patch Tuesday updates fix 165 vulnerabilities, including a SharePoint zero-day that has been exploited in ...

Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

Microsoft adds sensitivity label creation with custom permissions to Word, Excel, and PowerPoint on the web, closing a key ...

As security researchers warn about a dangerous Microsoft Windows update that isn’t, users must pay close attention to what ...

Anthropic has released a beta version of its Claude AI as an add-in for Microsoft Word, giving professionals a second AI ...

The nearly decade-old conspiracy theory does not align neatly with the facts emerging from the documents. That does not seem to matter. By Tiffany Hsu and Stuart A. Thompson The theory at the heart of ...

According to the Microsoft 365 roadmap, Outlook will introduce one-step folder sharing to streamline permission management. Users will soon share a folder with a single action instead of manually ...

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A blind spot in Microsoft’s app and add-in marketplace security allowed an eagle-eyed hacker to hijack an abandoned Outlook add-in to carry out phishing attacks that compromised 4,000 users, ...

Cybersecurity researchers have discovered what they said is the first known malicious Microsoft Outlook add-in detected in the wild. In this unusual supply chain attack detailed by Koi Security, an ...

Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks. The vulnerability, tracked as CVE-2026-21509, carries a CVSS ...

Microsoft has rushed out an emergency patch for a security vulnerability in multiple versions of Microsoft Office and Microsoft 365 that attackers are actively exploiting. The zero-day bug, designated ...