How Microsoft builds privacy and security to work hand-in-hand

The Deputy CISO blog series is where Microsoft 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...

Explore the latest Microsoft Incident Response proactive services for enhanced resilience

As cyberthreats become faster, harder to detect, and more sophisticated, organizations must focus on building resilience—strengthening their ability to prevent, withstand, and recover from cybersecurity incidents. Resilience can mean the difference between containing an incident with minimal...

New Microsoft e-book: 3 reasons point solutions are holding you back

While patchwork tools slow defenders down and impact visibility into potential cyberthreats, they’re an unfortunate reality for many organizations. As digital risk accelerates and attack surfaces multiply, security leaders are doing their best to stitch together point solutions while trying to...

Imposter for hire: How fake people can gain very real access

In the latest edition of our Cyberattack Series, we dive into a real-world case of fake employees. Cybercriminals are no longer just breaking into networks—they’re gaining access by posing as legitimate employees. This form of cyberattack involves operatives posing as legitimate remote hires,...

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. It serves as a strategic lever for organizational growth, fosters trust, and facilitates the advancement of AI innovation. The Wor...

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...

Cybersecurity strategies to prioritize now​​

The Deputy CISO blog series is where Microsoft 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...

​​Ambient and autonomous security for the agentic era​​

Over the past year, I've had countless conversations with customers who are striving to unlock human ambition with AI. They are on their journey to become Frontier Firms, where humans and agents push the boundaries of innovation and create new possibilities, empowering humans to become limitless...

Harden your identity defense with improved protection, deeper correlation, and richer context

In today’s digital-first enterprise, identities have become the new corporate security perimeter. Hybrid work and cloud-first strategies have dissolved traditional network boundaries and dramatically increased the complexity of identity fabrics. Security teams are left managing a constellation of...

Securing and governing the rise of autonomous agents​​

In this blog, you will hear directly from Corporate Vice President and Deputy Chief Information Security Officer CISO for Identity, Igor Sakhnov, about how to secure and govern autonomous agents. This blog is part of a new ongoing series where our Deputy CISOs share their thoughts on what is most...

Dow’s 125-year legacy: Innovating with AI to secure a long future

Founded more than 125 years ago, Dow has demonstrated a commitment to leveraging science to make the world a better place. Today, Dow’s ambition to be the most innovative, inclusive, and sustainable materials science company is supported by a global security team dedicated to keeping employees,...

Sharing practical guidance: Launching Microsoft Secure Future Initiative (SFI) patterns and practices

We’re excited to launch Microsoft Secure Future Initiative SFI patterns and practices : a new library of actionable guidance designed to help organizations implement security measures at scale. This launch marks the next step in our journey to make our SFI learnings practical for our customers,...

Microsoft partners with Global Anti-Scam Alliance to fight cybercrime

Being the victim of a scam can be devastating. Unfortunately, the number of people who can attest to the truth of this statement, either because they themselves have been scammed or because it has happened to someone they know, is growing. The Global Anti-Scam Alliance GASA reports that in 2024...

Pushing passkeys forward: Microsoft’s latest updates for simpler, safer sign-ins

Happy World Passkey Day! As the world shifts from passwords to passkeys, we’re excited to join the FIDO Alliance in leaving “World Password Day” behind to celebrate the very first “World Passkey Day.” To commemorate this renaming, Microsoft and dozens of other organizations have taken the Passkey...

Minimize cybersecurity risk with Software Asset Management

This post is authored by Patama Chantaruck, General Manager of Worldwide Software Asset Management & Compliance. By 2021, worldwide cybercrime damage is expected to reach $6 trilliondouble what it cost businesses in 2015. Unapproved apps, unmanaged devices, poor password protection, and other...

Microsoft named a Leader in the Frost Radar™: Cloud Workload Protection Platforms, 2026

Security teams are overwhelmed with findings but still struggle to answer a simple question: which risks matter right now? A vulnerability alone is rarely the problem. The same vulnerability running in production, exposed through a misconfiguration or over-permissioned identity, is a real path to...

Turning threat intelligence into decisive action with Defender Experts

In this article 1. Upstream: See the campaign before it reaches you 1. In your environment: Follow the threat everywhere it moves 2. See it live at Black Hat USA Security teams have never had more visibility, yet rarely have they felt more uncertain. Signal pours in from endpoints, identities,...

Applying security fundamentals to AI: Practical advice for CISOs

What to know about the era of AI The first thing to know is that AI isn’t magic The best way to think about how to effectively use and secure a modern AI system is to imagine it like a very new, very junior person. It’s very smart and eager to help but can also be extremely unintelligent. Like a...

Microsoft Security success stories: Why integrated security is the foundation of AI transformation

AI is transforming how organizations operate and how they approach security. In this new era of agentic AI, every interaction, digital or human, must be built on trust. As businesses modernize, they’re not just adopting AI tools, they're rearchitecting their digital foundations. And that means...

Clarity in complexity: New insights for transparent email security

As email threats grow more sophisticated and layered security architectures become more common, organizations need clear, data-driven insights to evaluate how their security solutions perform together. Benchmarking plays a critical role in helping security leaders understand not just individual...

Clarity in complexity: New insights for transparent email security

As email threats grow more sophisticated and layered security architectures become more common, organizations need clear, data-driven insights to evaluate how their security solutions perform together. Benchmarking plays a critical role in helping security leaders understand not just individual...

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

I'm deeply grateful to our customers and partners for their continued trust and collaboration. 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. We feel this recognition underscores the...

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

I'm deeply grateful to our customers and partners for their continued trust and collaboration. 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. We feel this recognition underscores the...

Collaborative research by Microsoft and NVIDIA on real-time immunity

AI-Powered Threats Demand AI-Powered Defense While AI supports growth and innovation, it is also reshaping how organizations address faster, more adaptive security risks. AI-driven security threats, including “vibe-hacking”, are evolving faster than traditional defenses can adapt. Attackers can n...

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

Microsoft has discovered a new type of side-channel attack on remote language models. This type of side-channel attack could allow a cyberattacker a position to observe your network traffic to conclude language model conversation topics, despite being end-to-end encrypted via Transport Layer...

Harden your identity defense with improved protection, deeper correlation, and richer context

In today’s digital-first enterprise, identities have become the new corporate security perimeter. Hybrid work and cloud-first strategies have dissolved traditional network boundaries and dramatically increased the complexity of identity fabrics. Security teams are left managing a constellation of...

The CISO imperative: Building resilience in an era of accelerated cyberthreats

The latest Microsoft Digital Defense Report 2025 paints a vivid picture of a cyberthreat landscape in flux. The surge in financially motivated cyberattacks and the persistent risk of nation-state actors demand urgent attention. But for those of us in the Office of the Chief Information Security...

Inside the attack chain: Threat activity targeting Azure Blob Storage

Azure Blob Storage, like any object data service, is a high-value target for threat actors due to its critical role in storing and managing massive amounts of unstructured data at scale across diverse workloads. Organizations of all sizes use Blob Storage to support key workloads—such as AI, high...

Building a lasting security culture at Microsoft

At Microsoft, building a lasting security culture is more than a strategic priority—it is a call to action. Security begins and ends with people, which is why every employee plays a critical role in protecting both Microsoft and our customers. When secure practices are woven into how we think,...

Securing agentic AI: Your guide to the Microsoft Ignite sessions catalog

Security is a core focus at Microsoft Ignite 2025, reflected in dedicated sessions and hands-on experiences designed for security professionals and leaders. Whether you’re shaping strategy or working on the front lines, Microsoft Ignite offers direct access to the latest advancements and practica...

Inside Microsoft Threat Intelligence: Calm in the chaos

Leading Through the Worst Day Incident response is never orderly. Threat actors don’t wait. Environments are compromised. Data is missing. Confidence is shaken. But for Microsoft’s Incident Response IR team, that chaos is exactly where the work begins. In Episode 1, we showed how Microsoft Threat...

Introducing Microsoft Marketplace — Thousands of solutions. Millions of customers. One Marketplace.

A new breed of industry-leading company is taking shape — Frontier Firms. These organizations blend human ambition with AI-powered technology to reshape how innovation is scaled, work is orchestrated and value is created. They’re accelerating AI transformation to enrich employee experiences,...

Microsoft Purview innovations for your Fabric data: Unify data security and governance for the AI era

The Microsoft Fabric and Purview teams are thrilled to participate in the European Microsoft Fabric Community Conference September 15-18, 2025, in Vienna, Austria. This event is Microsoft’s largest tech conference in Europe, where data professionals gather to connect and share insights on data,...

Azure mandatory multifactor authentication: Phase 2 starting in October 2025

As cyberattacks become increasingly frequent, sophisticated, and damaging, safeguarding your digital assets has never been more critical, and at Microsoft, your security is our top priority. Microsoft research shows that multi-factor authentication MFA can block more than 99.2% of account...

Enhancing Microsoft 365 security by eliminating high-privilege access

In this blog you will hear directly from Microsoft’s Deputy Chief Information Security Officer CISO for Experiences and Devices, Naresh Kannan, about eliminating high-privileged access across all Microsoft 365 applications. This blog is part of an ongoing series where our Deputy CISOs share their...

Planning your move to Microsoft Defender portal for all Microsoft Sentinel customers

In November 2023, Microsoft announced our strategy to unify security operations by bringing the best of XDR and SIEM together. Our first step was bringing Microsoft Sentinel into the Defender portal, giving teams a single, comprehensive view of incidents, reducing queue management, enriched threa...

Navigating cyber risks with Microsoft Security Exposure Management eBook

Imagine steering a vessel through Arctic waters where 90% of iceberg mass lies hidden beneath the surface; your lookouts equipped only with telescopes and blind to the submerged threats. This parallels today's cybersecurity landscape: According to the Microsoft Digital Defense Report 2024, nearly...

Meet the Deputy CISOs who help shape Microsoft’s approach to cybersecurity: Part 3

Microsoft launched its Cybersecurity Governance Council in 2024, and with it, named a group of deputy chief information security officers that ensure comprehensive oversight of the company’s cybersecurity risk, defense, and compliance. These leaders work in tandem with product and engineering...

Pushing passkeys forward: Microsoft’s latest updates for simpler, safer sign-ins

Happy World Passkey Day! As the world shifts from passwords to passkeys, we’re excited to join the FIDO Alliance in leaving “World Password Day” behind to celebrate the very first “World Passkey Day.” To commemorate this renaming, Microsoft and dozens of other organizations have taken the Passkey...

Windows 11 enables security by design from the chip to the cloud

Over the last year, PCs have kept us connected to family, friends, and enabled businesses to continue to run. This new hybrid work paradigm has got us thinking about how we will continue to deliver the best possible quality, experience, and security for the more than 1 billion people who use...

​​​​​​What’s new in Microsoft Security: August 2026

As organizations incorporate AI agents into more processes across business and operations, security teams can benefit from greater visibility and new purpose-built tools that help manage, secure, and govern AI. This month’s updates provide new capabilities to help organizations gain insights into...

Rethinking security for the age of AI

Why security needs a new Cyber Stack — Introducing Project Perception The physics of cybersecurity are changing. Autonomous systems can now reason, adapt and operate continuously. At the same time, the cost of offense is falling, while the volume, velocity and complexity of what must be secured...

Real world incident response: Microsoft and AXA XL strengthen cyber resilience

Cyber incidents don't wait—and effective response can’t either. In the age of AI where cyber incidents unfold at machine speed, having the right partnerships in place becomes paramount. While AI is expanding what's possible, navigating this transformation can be challenging to do alone. That's wh...

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...

Access Fabric: A modern approach to identity and network access

Today, most organizations use multiple identity systems and multiple network access solutions from multiple vendors. This happens, either intentionally or organically, when different areas of a company choose different tools, creating a fragmented environment that leaves weaknesses that...

The CISO imperative: Building resilience in an era of accelerated cyberthreats

The latest Microsoft Digital Defense Report 2025 paints a vivid picture of a cyberthreat landscape in flux. The surge in financially motivated cyberattacks and the persistent risk of nation-state actors demand urgent attention. But for those of us in the Office of the Chief Information Security...

Extortion and ransomware drive over half of cyberattacks

In 80% of the cyber incidents Microsoft’s security teams investigated last year, attackers sought to steal data—a trend driven more by financial gain than intelligence gathering. According to the latest Microsoft Digital Defense Report, written with our Chief Information Security Officer Igor...

The importance of hardening customer support tools against cyberattacks

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...

Microsoft named a Leader in the IDC MarketScape for XDR

When cybersecurity stakes are high and complexity is the norm, Microsoft doesn’t just participate, it excels with Microsoft Defender XDR—built to anticipate, disrupt, and outpace modern cyberthreats. We are excited to announce that Microsoft has been named a Leader in the IDC MarketScape: Worldwi...

Cybersecurity Awareness Month: Security starts with you

At Microsoft, security is our number one priority, and we believe that cybersecurity is as much about people as it is about technology. As we move into October and kick off Cybersecurity Awareness Month, this time of year really makes me think about how important online safety is—not just at work...