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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...
Microsoft named a leader in the 2025 Gartner® Magic Quadrant™ for Email Security
We’re honored to share that Microsoft has been named a Leader in the 2025 Gartner® Magic Quadrant™ for Email Security. We believe this recognition highlights the value of Microsoft Defender for Office 365’s innovative capabilities in addressing today’s complex email security challenges. Protect...
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...
Agents built into your workflow: Get Security Copilot with Microsoft 365 E5
The cybersecurity landscape is at a historic inflection point. As cyberattackers wield AI to automate cyberattacks at extraordinary speed and scale, the challenge before us is not just to keep pace—but to leap ahead. There are over four million unfilled cybersecurity jobs, so depending solely on...
Securing our future: November 2025 progress report on Microsoft’s Secure Future Initiative
When we launched the Secure Future Initiative SFI, our mission was clear: accelerate innovation, strengthen resilience, and lead the industry toward a safer digital future. Today, we’re sharing our latest progress report that reflects steady progress in every area and engineering pillar,...
Securing critical infrastructure: Why Europe’s risk-based regulations matter
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...
The 5 generative AI security threats you need to know about detailed in new e-book
Generative AI is reshaping the way security teams operate—accelerating threat detection, automating workflows, and enabling scale. But as defenders embrace AI to strengthen their posture, cyberattackers are doing the same to evolve faster than traditional defenses can adapt. Microsoft’s 2025...
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...
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...
Microsoft Entra Suite delivers 131% ROI by unifying identity and network access
In today’s AI-first world, identity and network access are the first touchpoints for enforcing least privilege and protecting against sophisticated, identity-based attacks—but for many organizations, that defense is fragmented. Siloed teams and disconnected tools create security gaps, operational...
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...
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...
Transforming public sector security operations in the AI era
The cyberthreat landscape is evolving at an unprecedented pace, becoming increasingly dangerous and complex. Nation-state threat actors and cybercriminals are employing advanced tactics and generative AI to execute highly sophisticated attacks. This situation is further compounded by outdated...
Defenders wanted—building the new cybersecurity professionals
As part of Cybersecurity Awareness Month, we published a special blog post earlier this week featuring real-world experiences shared by cybersecurity professionals: people with diverse backgrounds in law, academia, software development, and other seemingly unrelated fields. This topic is near and...
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...
Hunting MacSync Stealer infrastructure through behavioral pivots
In this article 1. Activity overview 2. Discovery of additional rotating infrastructure 3. Attack chain overview 4. Mitigation and protection guidance 5. References 6. Learn more MacSync Stealer is a macOS-focused information stealer that relies on changing infrastructure to deliver payloads,...
From open lures to cloaked gates: How a macOS ClickFix campaign learned to hide
In this article 1. Activity overview 2. How ClickFix works 3. Campaign overview 4. ClickFix moved from open pages to fingerprinting gates 5. The fingerprinting gate 6. Mitigation and protection guidance 7. Indicators of compromise IOC 8. References 9. Learn more Microsoft Threat Intelligence...
Better security starts with better questions
As organizations move beyond AI experimentation, success will depend on how effectively they combine intelligence and trust. The same systems that amplify knowledge, accelerate decisions, and unlock new outcomes must also protect data, govern AI, and build resilience. In this next phase of...
Containing a domain compromise: How predictive shielding shut down lateral movement
In this article 1. Predictive shielding overview 2. Attack chain overview 3. How predictive shielding changed the outcome 4. MITRE ATT&CK® techniques observed 5. Learn more In identity-based attack campaigns, any initial access activity can turn an already serious intrusion into a critical incide...
Inside an AI‑enabled device code phishing campaign
In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Indicators of compromise IOC 4. References 5. Learn more Microsoft Defender Security Research has observed a widespread phishing campaign leveraging the device code authentication flow to compromise organizational...
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...
Identity security is the new pressure point for modern cyberattacks
Identity attacks no longer hinge on who a cyberattacker compromises, but on what that identity can access. As organizations manage growing numbers of human, non-human, and agentic identities, their access fabric multiplies across apps, resources, and environments, which increases both operational...
Security strategies for safeguarding governmental data
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...
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...
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...
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,...
How to build forward-thinking cybersecurity teams for tomorrow
We are witnessing something unprecedented in cybersecurity: the democratization of advanced cyberattack capabilities. What once required nation-state resources sophisticated social engineering, polymorphic malware, coordinated infrastructure now fits in a prompt window. AI is no longer a futurist...
Charting the future of SOC: Human and AI collaboration for better security
Security operations centers are under pressure from unprecedented scale and complexity. Speed, precision, and consistency matter more than ever, and AI is everywhere—but hype alone doesn’t solve the challenge. This blog shares our journey and insights from building autonomous AI agents for MDR...
Learn what generative AI can do for your security operations center
The busier security teams get, the harder it can be to understand the full impact of false positives, queue clutter, tool fragmentation, and more. But what is clear—it all adds up to increased fatigue and an increased potential to miss the cyberthreats that matter most. To help security teams...
SesameOp: Novel backdoor uses OpenAI Assistants API for command and control
Microsoft Incident Response – Detection and Response Team DART researchers uncovered a new backdoor that is notable for its novel use of the OpenAI Assistants Application Programming Interface API as a mechanism for command-and-control C2 communications. Instead of relying on more traditional...
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...
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 Defender delivered 242% return on investment over three years
The latest Forrester Total Economic Impact™ TEI study reveals a 242% return on investment ROI over three years for organizations that chose Microsoft Defender. It helps security leaders consolidate tools, reduce overhead, and empower their security operations SecOps teams with operational...
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...
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,...
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...
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...
Microsoft announces the 2025 Security Excellence Awards winners
In today’s rapidly evolving digital world, security requires a global community of defenders working together as a team to build a safer world for all. That’s why we’re thrilled to recognize the extraordinary individuals and organizations who have gone above and beyond in the fight against...
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...
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...
Microsoft named a Leader in the 2026 IDC MarketScape for MDR/MXDR for the Enterprise
Security teams are being asked to defend a growing attack surface with fewer people and around the clock, against threat actors who never take a night off. As cyberattackers increasingly use AI to launch and scale campaigns, the volume, speed, and sophistication of threats continue to rise. Closi...
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...
Observability for AI Systems: Strengthening visibility for proactive risk detection
Adoption of Generative AI GenAI and agentic AI has accelerated from experimentation into real enterprise deployments. What began with copilots and chat interfaces has quickly evolved into powerful business systems that autonomously interact with sensitive data, call external APIs, connect to...
Security strategies for safeguarding governmental data
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...
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...
Microsoft named a Leader in IDC MarketScape for Unified AI Governance Platforms
As organizations rapidly embrace generative and agentic AI, ensuring robust, unified governance has never been more critical. That’s why Microsoft is honored to be named a Leader in the2025-2026 IDC MarketScape for Worldwide Unified AI Governance Platforms Vendor Assessment US53514825, December...
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...