Learn about security for Microsoft 365 products and services.

Microsoft Defender for Office 365 is powerful email security software with phishing protection, secure collaboration tools, and advanced threat security.

Microsoft 365 security refers to the technologies, policies, and processes used to protect users, data, and identities within the M365 suite. While Microsoft provides a range of native capabilities, …

Aug 28, 2025 · For Microsoft 365 customers, one wrong click – an over-permissioned guest, a forgotten admin role, a disabled conditional access policy – can open your entire tenant. Gartner found that …

Dec 30, 2024 · A complete guide to Microsoft 365 security practices and posture management to help you strengthen defenses and enhance compliance.

Discover our comprehensive list of Microsoft 365 security best practices. Learn to protect your data with MFA, Zero Trust, ATP, and more in this in-depth guide. In the modern hybrid work environment, …

1 day ago · Microsoft Purview Data Security Investigations became generally available in January, providing data security teams with AI-powered tools to identify, investigate, and mitigate sensitive …

Sep 9, 2025 · Learn best practices to protect your data using Microsoft 365 Business Basic, Standard, or Premium. Protect devices, email, files, and accounts.

Mar 17, 2025 · Microsoft 365 endorses security ideas like Zero Trust, and principles of Least Privilege access. This section gives an overview of fundamental elements that form a security framework for …

Dec 18, 2025 · Microsoft 365 pricing changes start July 1, 2026. See updated list prices, new security and Intune capabilities, and a 7-step plan for renewal readiness.