It’s Time To Act Microsoft's Digital Defense Report 2025 clearly describes the cyber threat landscape that this guidance is situated in, one that has become more complex, more industrialized, and i...

Ignite 2025 delivered groundbreaking innovations for securing the agentic era—where AI agents transform how we work and collaborate. If you missed the live sessions, news announcements, or want to di...

Protect it all with Microsoft Security  Eliminate gaps and get the simplified, comprehensive protection, expertise, and AI-powered solutions you need to innovate and grow in a changing world. The M...

Today, data moves across clouds, apps, and devices at an unprecedented speed, often outside the visibility of siloed legacy tools. The rise of autonomous agents, generative AI, and distributed data e...

At Microsoft Ignite 2025, we’re showcasing how Microsoft Sentinel —trusted by over 40,000 customers worldwide— combines industry-leading SIEM capabilities with a purpose-built security data lake to t...

Today, we’re excited to announce the General Availability of Microsoft Sentinel MCP (Model Context Protocol) server, a fully managed cloud service built on an open standard that empowers AI agents to...

When we launched the Microsoft Security Store in public preview on September 30, our goal was simple: make it easier for organizations to discover, purchase, and deploy trusted security solutions and...

Introduction  We are excited to announce a significant leap forward in security: Post-Quantum Cryptography (PQC) algorithms are now generally available in Windows Server 2025 and Windows 11 clients...

This week at Microsoft Ignite, we shared our vision for Microsoft security -- In the agentic era, security must be ambient and autonomous, like the AI it protects. It must be woven into and around ev...

As organizations accelerate their adoption of agentic AI, a new and urgent challenge is emerging: how to protect the rapidly growing number of agents—first-party, third-party, and custom-built—create...