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...

Introduction The power of AI agents is their autonomy – their ability to understand context, dynamically adjust workflows, orchestrate tooling, and act with little to no human interaction. But that...

Earlier this fall, we launched Microsoft Sentinel graph – and today, we are pleased to announce that Sentinel graph is generally available starting December 1, 2025. Microsoft Sentinel graph maps the...