Microsoft AI Red Team building future of safer AI

An essential part of shipping software securely is red teaming. It broadly refers to the practice of emulating real-world adversaries and their tools, tactics, and procedures to identify risks, uncover blind spots, validate assumptions, and improve the overall security posture of systems. Microso...

Microsoft at NICE Conference: Resetting expectations and enabling diversity in the cybersecurity workforce

Closing the cybersecurity talent gap is not something we can achieve alone; it requires a collective effort from the entire industry and focus on enabling cybersecurity awareness and education for all. This realization hit home for us during our recent participation in the National Initiative for...

Join us at InfoSec Jupyterthon 2022

Notebooks are gaining popularity in InfoSec. Used interactively for investigations and hunting or as scheduled processing jobs, notebooks offer plenty of advantages over traditional security operations center SOC tools. Sitting somewhere between scripting/macros and a full-blown development...

Building a safer world together with our partners—introducing Microsoft Security Experts

More threats—not enough defenders The security landscape has become increasingly challenging and complex for our customers. Threats have grown at an alarming rate over the last year, and cybercrime is now expected to cost the world USD10.5 trillion annually by 2025, up from USD3 trillion a decade...

Why decentralization is the future of digital identities

Our identity is increasingly becoming digitized—more of our hard copy credentials are converting into digital formats. We use these digital credentials to work, learn, play, socialize, shop, and consume services online and offline every day. It’s so convenient and expected now to be able to have...

2.5 million-plus cybersecurity jobs are open—women can fill them

This month is Women’s History Month and today is International Women’s Day—a time to reflect as individuals, societies, and industries on our progress for quality and equity for women. As a woman working in cybersecurity, I know firsthand that engaging girls, women, and people of color in...

Microsoft Security delivers new multicloud capabilities

In times of great change, challenges and opportunities can be found in many directions. This is certainly true in IT and cybersecurity. Today, while navigating a pandemic, frequent supply chain shocks, and global talent shortages, organizations around the world are forced to confront sophisticate...

Protect your business with Microsoft Security’s comprehensive protection

Securing an organization has never been simple. But over the past year, we’ve seen significant changes in the threat landscape that are having a major impact on organizations of every size in every sector. The frequency and sophistication of cyber events have increased significantly. We see...

Detect and disrupt AI-themed attacks with Microsoft Defender

Every wave of technology excitement creates a new opportunity for cyberattackers, and AI is no exception. Microsoft Threat Intelligence has published research showing a growing set of campaigns that impersonate popular AI platforms and tools, including ChatGPT, Microsoft Copilot, DeepSeek, and...

How to secure edge AI in customer-owned environments

In this article 1. Edge AI changes the trust model for AI systems 2. Constrain model actions through deterministic mediation 3. Establish trust before releasing sensitive assets 4. Verify runtime before releasing sensitive assets 5. Verify artifacts that shape model behavior 6. Next steps Edge AI...

DeadLock ransomware: Breaking down a Rust-based encryptor with decentralized recovery infrastructure

In this article 1. Pre-encryption 2. Encryption 3. Post-encryption 4. Defending against DeadLock ransomware 5. Indicators of compromise Microsoft Threat Intelligence tracks DeadLock ransomware as an emerging financially motivated operation distinguished by its use of decentralized infrastructure ...

Advance Zero Trust for AI: New tools and guidance to secure AI agents and DevSecOps

The calculus of cybersecurity has changed. AI is reshaping how organizations build, deploy, operate, and defend digital systems. AI-powered development tools, agents, and autonomous workflows are accelerating innovation but they are also introducing new attack surfaces, new trust boundaries, and...

Protecting Microsoft at AI speed: How SFI proactively hardens our cloud

AI models have reached a threshold where they exhibit expert-level capabilities in vulnerability discovery, exploit chaining, and proof-of-concept generation. As AI-powered vulnerability discovery matures, every organization that builds or runs software at scale needs continuous proactive...

Microsoft Security success stories: How St. Luke’s and ManpowerGroup are securing AI foundations

AI is reshaping how work gets done—and how risks emerge across cloud, data, identity, and more. Many organizations want AI-powered productivity, but their security foundations aren’t yet built for it. As organizations move toward AI-powered operating models, security becomes the critical enabler ...

Breaking the code: Multi-stage ‘code of conduct’ phishing campaign leads to AiTM token compromise

In this article 1. Multi-step social engineering campaign leading to credential theft 2. Mitigation and protection guidance 3. Microsoft Defender detections 4. Hunting queries 5. Indicators of compromise Phishing campaigns continue to improve sophistication and refinement in blending social...

What’s new, updated, or recently released in Microsoft Security

New capabilities in Microsoft Agent 365; new Microsoft Defender and GitHub integration At Microsoft, security innovations are purpose-built to help every organization protect end-to-end with the speed and scale of AI. Our vision is simple: security should be ambient and autonomous, just like the ...

Building your cryptographic inventory: A customer strategy for cryptographic posture management

Post-quantum cryptography PQC is coming—and for most organizations, the hardest part won’t be choosing new algorithms. It will be finding where cryptography is used today across applications, infrastructure, devices, and services so teams can plan, prioritize, and modernize with confidence. At...

Investigating Storm-2755: “Payroll pirate” attacks targeting Canadian employees

In this article 1. Storm-2755’s attack chain 2. Defending against Storm-2755 and AiTM campaigns 3. Microsoft Defender detection and hunting guidance 4. Indicators of compromise Microsoft Incident Response – Detection and Response Team DART researchers observed an emerging, financially motivated...

The threat to critical infrastructure has changed. Has your readiness?

Critical infrastructure CI organizations underpin national security, public safety, and the economy. In 2026, the cyber threat landscape facing these sectors is structurally different than it was even two years ago. What Microsoft Threat Intelligence is observing across critical infrastructure...

Addressing the OWASP Top 10 Risks in Agentic AI with Microsoft Copilot Studio

Agentic AI is moving fast from pilots to production. That shift changes the security conversation. These systems do not just generate content. They can retrieve sensitive data, invoke tools, and take action using real identities and permissions. When something goes wrong, the failure is not limit...

Secure agentic AI for your Frontier Transformation

Today we shared the next step to make Frontier Transformation real for customers across every industry with Wave 3 of Microsoft 365 Copilot, Microsoft Agent 365, and Microsoft 365 E7: The Frontier Suite. Introducing the First Frontier Suite built on Intelligence and Trust As our customers rapidly...

Women’s History Month: Encouraging women in cybersecurity at every career stage

Women’s History Month—and International Women’s Day on March 8, 2026—always gives me pause for reflection. It’s a moment to think about how far we’ve come and think about who we choose to uplift as we look ahead. Throughout my career, I’ve been inspired by extraordinary women leaders—trailblazers...

Signed malware impersonating workplace apps deploys RMM backdoors

In February 2026, Microsoft Defender Experts identified multiple phishing campaigns attributed to an unknown threat actor. The campaigns used workplace meeting lures, PDF attachments, and abuse of legitimate binaries to deliver signed malware. Phishing emails directed users to download malicious...

Threat modeling AI applications

Proactively identifying, assessing, and addressing risk in AI systems We cannot anticipate every misuse or emergent behavior in AI systems. We can , however, identify what can go wrong, assess how bad it could be, and design systems that help reduce the likelihood or impact of those failure modes...

Running OpenClaw safely: identity, isolation, and runtime risk

Self-hosted agent runtimes like OpenClaw are showing up fast in enterprise pilots, and they introduce a blunt reality: OpenClaw includes limited built-in security controls. The runtime can ingest untrusted text, download and execute skills i.e. code from external sources, and perform actions usin...

The strategic SIEM buyer’s guide: Choosing an AI-ready platform for the agentic era

As the agentic era reshapes security operations, leaders face a strategic inflection point: legacy security information and event management SIEM solutions and fragmented toolchains can no longer keep pace with the scale, speed, and complexity of modern cyberthreats. Organizations can choose to...

80% of Fortune 500 use active AI Agents: Observability, governance, and security shape the new frontier

Today, Microsoft is releasing the new Cyber Pulse report to provide leaders with straightforward, practical insights and guidance on new cybersecurity risks. One of today’s most pressing concerns is the governance of AI and autonomous agents. AI agents are scaling faster than some companies can s...

A one-prompt attack that breaks LLM safety alignment

Large language models LLMs and diffusion models now power a wide range of applications, from document assistance to text-to-image generation, and users increasingly expect these systems to be safety-aligned by default. Yet safety alignment is only as robust as its weakest failure mode. Despite...

Changing the physics of cyber defense

The Deputy CISO blog series is whereMicrosoft Deputy Chief Information Security Officers CISOs share their thoughts on what is most important in their respective domains. In this series, you will get practical advice, tactics to start and stop deploying, forward-looking commentary on where the...

The new Microsoft Security Store unites partners and innovation

On September 30, 2025, Microsoft announced a bold new vision for security: a unified, AI-powered platform designed to help organizations defend against today’s most sophisticated cyberthreats. But an equally important story—one that’s just beginning to unfold—is how the Microsoft Security Store i...

Dissecting PipeMagic: Inside the architecture of a modular backdoor framework

Among the plethora of advanced attacker tools that exemplify how threat actors continuously evolve their tactics, techniques, and procedures TTPs to evade detection and maximize impact, PipeMagic, a highly modular backdoor used by Storm-2460 masquerading as a legitimate open-source ChatGPT Deskto...

Faster, more personalized service begins at the frontline with Microsoft Intune

In healthcare, patient trust often begins at the frontline with people who deliver care, respond to questions, and manage crucial in-the-moment decisions. Increasingly, those experiences are shaped by the tools frontline workers use. When devices are secure, responsive, and tailored to clinical...

Microsoft named an overall leader in KuppingerCole Leadership Compass for ITDR

The post Microsoft named an overall leader in KuppingerCole Leadership Compass for ITDR appeared first on Microsoft Security Blog...

How automation is evolving SecOps—and the real cost of cybercrime

This post is coauthored by Rob May, Founder and Managing Director, ramsac The security community is continuously changing, growing, and learning from each other to better position the world against cyberthreats. In the latest post of our Community Voices blog series, Microsoft Security Senior...

Protect intellectual property with Govern 365 and Microsoft Purview

This blog post is part of the Microsoft Intelligent Security Association guest blog series. Learn more about MISA. Global supply chains face a broad range of risks, from physical threats to cybersecurity threats. Sharing information with suppliers is essential for the supply chain to function...

See product news and on-demand sessions from Microsoft Secure

“Great speakers and very knowledgeable.” “Brilliant.” “Wonderful and very useful.” The first Microsoft Secure on March 28, 2023, was a huge success—as this attendee feedback shows. Our virtual event brought together more than 20,000 security professionals eager to learn security best practices an...

How to build a secure foundation for identity and access

The security community is continuously changing, growing, and learning from each other to better position the world against cyberthreats. In the latest post of our Community Voices blog series, Microsoft Security Senior Product Marketing Manager Brooke Lynn Weenig talks with Christina Richmond, a...

Introducing security for unmanaged devices in the Enterprise network with Microsoft Defender for IoT

How many IoT devices are used at your company? If yours is like most organizations, there are probably printers, scanners, and fax machines scattered around the office. Perhaps smart TVs are mounted at reception or in the break room to guide visitors and keep employees up-to-date on company event...

Making the world a safer place with Microsoft Defender for individuals

Today’s sophisticated cyber threats require a modern approach to security. And this doesn’t apply only to enterprises or government entities—in recent years we’ve seen attacks increase exponentially against individuals. There are 921 password attacks every second.1 We’ve seen ransomware threats...

Streamlining employee onboarding: Microsoft’s response to the Great Reshuffle

In 2021, workers everywhere reevaluated their professional and personal choices, leading to what became known as the Great Resignation. In 2022, a new trend that many are calling the Great Reshuffle has emerged, with 43 percent of the workforce saying they’re very likely to consider changing jobs...

How one senior developer brings the startup spirit to Microsoft

I recently had the opportunity to visit the Microsoft Africa Development Center, in my role as executive sponsor, for dedication ceremonies we hosted in both Nigeria and Kenya. All I have to say is, “Wow!” The energy at the ADC is simply electric. There’s so much optimism and so much enthusiasm f...

Discover the anatomy of an external cyberattack surface with new RiskIQ report

The internet is now part of the network. That might sound like hyperbole, but the massive shift to hybrid and remote work and a multicloud environment means security teams must now defend their entire online ecosystem. Recent ransomware attacks against internet-facing systems have served as a...

4 best practices to implement a comprehensive Zero Trust security approach

Today’s threat actors don’t see barriers, they see opportunities. As the old firewalls protecting the corporate network become obsolete amid the rush to adopt a hybrid workspace, implementing Zero Trust security has become an imperative across all sectors, both public and private. During this tim...

Microsoft unpacks comprehensive security at Gartner and Forrester virtual events

Every day, Microsoft is committed to maintaining comprehensive security for all across our interconnected global community. With that purpose in mind, we recently sponsored the 2021 Gartner Security and Risk Summit and 2021 Forester Security and Risk Forum, where we discussed ongoing changes in t...

Behind the scenes of business email compromise: Using cross-domain threat data to disrupt a large BEC campaign

Microsoft 365 Defender researchers recently uncovered and disrupted a large-scale business email compromise BEC infrastructure hosted in multiple web services. Attackers used this cloud-based infrastructure to compromise mailboxes via phishing and add forwarding rules, enabling these attackers to...

Improve security with a Zero Trust access model

Zero Trust is a security model that I believe can begin to turn the tide in the cybersecurity battles. Traditional perimeter-based network security has proved insufficient because it assumes that if a user is inside the corporate perimeter, they can be trusted. We’ve learned that this isn't true...

Application fuzzing in the era of Machine Learning and AI

Proactively testing software for bugs is not new. The earliest examples date back to the 1950s with the term fuzzing. Fuzzing as we now refer to it is the injection of random inputs and commands into applications. It made its debut quite literally on a dark and stormy night in 1988. Since then,...

How public-private partnerships can combat cyber adversaries

For several years now, policymakers and practitioners from governments, CERTs, and the security industry have been speaking about the importance of public-private partnerships as an essential part of combating cyber threats. It is impossible to attend a security conference without a keynote...

Detonating a bad rabbit: Windows Defender Antivirus and layered machine learning defenses

Windows Defender Antivirus uses a layered approach to protection: tiers of advanced automation and machine learning models evaluate files in order to reach a verdict on suspected malware. While Windows Defender AV detects a vast majority of new malware files at first sight, we always strive to...

ChainDrop supply chain compromise: Anatomy of a self-propagating worm

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Indicators of compromise IOC 4. Microsoft Defender XDR detections 5. Advanced hunting queries 6. Learn more Microsoft Threat Intelligence identified a large-scale npm supply chain attack affecting more than 400...