Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...

Microsoft has introduced a new Email Security Transparency Dashboard in Microsoft Defender for Office 365, offering customers visibility into threat detection metrics and benchmarking data. "At ...

Attackers exploit misconfigured email routing and weak spoof protections to send internal-looking phishing emails for ...

A phishing scam posing as a Microsoft security alert is targeting users with emails that claim an alert has been triggered on their account. The link appears safe at first glance, often pointing to a ...

Update, August 10, 2025: This story, originally published on August 7, has been updated with additional information following a demonstration of the shared service principal exploit at the Black Hat ...

Announcing Microsoft Defender Experts Suite, a integrated set of expert-led services that helps security teams keep pace with ...