AI and agents

AI and machine learning help you identify threats sooner and respond more effectively. Learn how to safeguard your infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS) resources across multicloud and hybrid environments.

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Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
Explore products
December 10, 2025

3 min read

From awareness to action: Building a security-first culture for the agentic AI era

The insights gained from Cybersecurity Awareness Month, right through to Microsoft Ignite 2025, demonstrate that security remains a top priority for business leaders.
December 2, 2025

7 min read

How to build forward-thinking cybersecurity teams for tomorrow

To secure the future, we must future-proof our cybersecurity talent and develop teams that are agile, innovative, and perpetually learning.
November 21, 2025

4 min read

Microsoft named a Leader in the Gartner® Magic Quadrant™ for Access Management for the ninth consecutive year

We’re happy to share that Microsoft has been recognized as a Leader in the 2025 Gartner® Magic Quadrant™ for Access Management for the ninth consecutive year.
November 18, 2025

5 min read

Agents built into your workflow: Get Security Copilot with Microsoft 365 E5

At Microsoft Ignite 2025, we are not just announcing new features—we are redefining what’s possible, empowering security teams to shift from reactive responses to proactive strategies.
Retain Microsoft Security Experts
Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.
Get started
November 18, 2025

9 min read

Ambient and autonomous security for the agentic era

In the agentic era, security must be ambient and autonomous, like the AI it protects. This is our vision for security, where security becomes the core primitive.
November 10, 2025

3 min read

Securing our future: November 2025 progress report on Microsoft’s Secure Future Initiative

When we launched the Secure Future Initiative, our mission was clear: accelerate innovation, strengthen resilience, and lead the industry toward a safer digital future.
November 7, 2025

8 min read

Whisper Leak: A novel side-channel attack on remote language models

Microsoft has discovered a side-channel attack on language models which allows adversaries to conclude model conversation topics, despite being encrypted.
November 6, 2025

4 min read

New IDC research highlights a major cloud security shift

New IDC research shows why CISOs must move toward AI-powered, integrated platforms like CNAPP, XDR, and SIEM to reduce risk, cut complexity, and strengthen resilience.
Go beyond data protection with Microsoft Purview
Govern, protect, and manage all of your data with Microsoft Purview, comprehensive solutions to help give you better visibility and control.
Learn more
November 4, 2025

4 min read

Learn what generative AI can do for your security operations center

This new e-book showcases what generative AI can do for your SOC, from reducing alert fatigue and enabling quicker triage to getting ahead of cyberattacks with proactive threat hunting, and more.
October 30, 2025

5 min read

The 5 generative AI security threats you need to know about detailed in new e-book

In this blog post, we’ll highlight the key themes covered in the e-book, including the challenges organizations face, the top generative AI threats to organizations, and how companies can enhance their security posture to meet the dangers of today’s unpredictable AI environments.
October 21, 2025

5 min read

The new Microsoft Security Store unites partners and innovation

The Microsoft Security Store is the gateway for customers to easily discover, buy, and deploy trusted security solutions and AI agents from leading partners.
September 30, 2025

5 min read

Empowering defenders in the era of agentic AI with Microsoft Sentinel

Microsoft Sentinel is expanding into an agentic platform with general availability of the Sentinel data lake, and the public preview of Sentinel graph and Sentinel Model Context Protocol (MCP) server.