New guide details how a unified, AI ready SIEM platform empowers security leaders to operate at the speed of AI, strengthen resilience, accelerate detection and response, and more.

New Microsoft Cyber Pulse report outlines why organizations should observe, govern, and secure their AI transformation to ...

That helpful “Summarize with AI” button? It might be secretly manipulating what your AI recommends. Microsoft security researchers have discovered a growing trend of AI memory poisoning attacks used ...

As LLMs and diffusion models power more applications, their safety alignment becomes critical. Our research shows that even minimal downstream fine‑tuning can weaken safeguards, raising a key question ...

CrashFix crashes browsers to coerce users into executing commands that deploy a Python RAT, abusing finger.exe and portable Python to evade detection and persist on high‑value systems.

Most security incidents happen in the gap between knowing what matters and actually implementing security controls ...

In this Q&A, Michelle introduces M12 and considers what kinds of AI-powered startup solutions will drive the next wave of AI innovation.

We are seeing exploitation of SolarWinds Web Help Desk via CVE‑2025‑40551 and CVE‑2025‑40536 that can lead to domain compromise; here is how to patch, hunt, and mitigate now.

Click to Start Demo Assistive technology note: If you use a screen reader, you may need to turn it off after starting the demo or it may intercept keystrokes, interfering with the demo. Ghosts can be ...

The Microsoft Security Response Center is part of the defender community and on the front line of security response evolution. For over twenty years, we have been engaged with security researchers ...

Our Standards of Business Conduct, our Trust Code, reflects our culture, values, and the principles that guide our behavior. Our employees use these standards to understand what is required of them, ...

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