Photo ZIP campaign targeting hospitality industry delivers Node.js implant for persistent access

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. References 4. Learn more Microsoft Threat Intelligence has identified an active multi-stage intrusion campaign targeting organizations in the hospitality and hotel industry since April 2026. We’ve observed this...

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...

Mitigating the Axios npm supply chain compromise

In this article 1. Analysis of the attack 2. Mitigation and protection guidance 3. Microsoft Defender detections 4. Indicators of compromise 5. Hunting queries On March 31, 2026, two new npm packages for updated versions of Axios, a popular HTTP client for JavaScript that simplifies making HTTP...

Connect with the security community at Microsoft Ignite 2025

In today’s AI-powered world, security professionals are facing unprecedented challenges—and opportunities. As generative AI reshapes the digital landscape, the need for robust, intelligent, and adaptive security strategies has never been more urgent. At Microsoft Ignite 2025, we will showcase...

Microsoft Build 2023: Announcing new identity, compliance, and security features from Microsoft Security

At Microsoft Build 2023—an event for developers by developers—we’re going to announce exciting new features and technologies, share ideas, and help everyone boost their skills so we can all build a more secure future together. This year’s Microsoft Build offers a full program, both online and...

​​Microsoft Entra: 5 identity priorities for 2023

Welcome to 2023. After the pandemic upended how we work, learn, play, and manage our lives, we find ourselves more connected than ever, with more convenient access to an ever-wider range of online tools and experiences. But as our global digital footprint continues to grow, so does the risk of...

Implementing Zero Trust access to business data on BYOD with Trustd MTD and Microsoft Entra

This blog post is part of the Microsoft Intelligent Security Association guest blog series. Learn more about MISA. As more employees work remotely on a variety of devices and networks, businesses need a security model that supports this new operational efficiency. An expanding perimeter poses...

Microsoft recognized as a Leader in the 2022 Gartner® Magic Quadrant™ for Unified Endpoint Management Tools

This month, Microsoft has been recognized by Gartner® as a Leader in the 2022 Magic Quadrant for Unified Endpoint Management UEM Tools. This blog post outlines the “so what” for IT leaders, and why we believe this Gartner analysis deserves your focus right now. As you see in the Magic Quadrant in...

Microsoft at RSA 2022: Envisioning the future of security

Like most of you, I was glad to see the 2022 RSA Conference return to its in-person roots after a two-year digital hiatus. This year’s event was a great success, drawing 26,000 attendees to three days of cutting-edge security sessions, tutorials, seminars, and special events at Moscone Center in...

So you want to be a CISO: What you should know about data protection

Data is the lifeblood of any organization. Whether you’re a Chief Information Security Officer CISO or aspiring to become one, protecting sensitive business data will be your main priority. But the job isn’t getting any easier. In 2021, the number of data breaches climbed 68 percent to 1,862,...

In hot pursuit of ‘cryware’: Defending hot wallets from attacks

The steep rise in cryptocurrency market capitalization, not surprisingly, mirrors a marked increase in threats and attacks that target or leverage cryptocurrencies. But Microsoft researchers are observing an even more interesting trend: the evolution of related malware and their techniques, and t...

The final report on NOBELIUM’s unprecedented nation-state attack

This is the final post in a four-part series on the NOBELIUM nation-state cyberattack. In December 2020, Microsoft began sharing details with the world about what became known as the most sophisticated nation-state cyberattack in history. Microsoft’s four-part video series “Decoding NOBELIUM” pul...

NICKEL targeting government organizations across Latin America and Europe

The Microsoft Threat Intelligence Center MSTIC has observed NICKEL, a China-based threat actor, targeting governments, diplomatic entities, and non-governmental organizations NGOs across Central and South America, the Caribbean, Europe, and North America. MSTIC has been tracking NICKEL since 2016...

Iranian targeting of IT sector on the rise

Iranian threat actors are increasing attacks against IT services companies as a way to access their customers’ networks. This activity is notable because targeting third parties has the potential to exploit more sensitive organizations by taking advantage of trust and access in a supply chain...

Learn how Microsoft strengthens IoT and OT security with Zero Trust

As cyber threats grow more sophisticated and relentless, the need for Cybersecurity Awareness Month becomes more urgent every year. As part of our year-round commitment to security for all, Microsoft continues to track numerous incidents targeting both digital and physical operations for many...

Cyberattacks targeting health care must stop

In recent months, we’ve detected cyberattacks from three nation-state actors targeting seven prominent companies directly involved in researching vaccines and treatments for COVID-19. The targets include leading pharmaceutical companies and vaccine researchers in Canada, France, India, South Kore...

Microsoft Security: 6 tips for enabling people-centric cybersecurity with security training

Everyone knows about phishing scams, and most of us think we’re too smart to take the bait. Our confidence often reaches superhero levels when we’re logged onto a company network. As Chief Security Advisor for Microsoft, and previously at telco Swisscom, it’s my business to understand how well...

Steer clear of tax scams

In the month of February, we saw an average of 300,000 phishing attempts across Microsoft’s browsing platforms daily. Our security experts expect these attempted scams to become increasingly more prevalent through the April 15 Tax Day, especially in the two weeks leading up to it, when about 25...

Cyber resilience for the modern enterprise

Many organizations are undergoing a digital transformation that leverages a mix of cloud and on-premises assets to increase business efficiency and growth. While increased dependence on technology is necessary for this transformation, and to position the business for success, it does pose risks...

Passkey-themed social engineering leads to identity and cloud compromise

In this article 1. Attack chain overview 2. Attribution 3. Mitigation and protection guidance 4. Learn more Microsoft Security Research is tracking active cloud-based intrusions spanning multiple accounts in which unusual sign-ins were followed by threat actor-added authentication methods,...

Microsoft at Black Hat USA 2026: Defending trust in the age of AI and supply chain attacks

In this article 1. Weston on the future of defense 2. Our latest intelligence and response on npm supply chain attacks 3. Follow the research in the Black Hat Briefings 4. Go deeper in Microsoft sessions 5. Visit booth 2144 for research, community, and hands-on defense 6. Plan your week with...

StealC and Amadey: Breaking down infostealers and the cybercrime services that deliver them

In this article 1. The role of infostealers: From credential theft to intrusion 2. StealC: Infostealer for rent 3. Amadey: Malware-as-a-service for delivery of infostealers 4. Defending against StealC and Amadey intrusions 5. Microsoft Defender detections 6. Indicators of compromise Infostealers...

​​Forrester names Microsoft a Leader in the 2026 Extended Detection and Response Platforms Wave™ report

We are excited to share that Microsoft has been named a Leader inThe Forrester Wave™: Extended Detection and Response Platforms, Q2 2026. Microsoft ranked the highest of any vendor evaluated in the Strategy category and is the only vendor to receive the highest score in Vision. Microsoft also...

Reconstructing AI activity in investigations

AI systems are now part of everyday work. Investigators need a consistent way to reconstruct what happened within them. Security teams are already investigating activity involving Microsoft 365 Copilot and Azure AI services—from prompt injection attempts to unexpected data access. Those signals a...

Disrupting threats targeting Microsoft Teams

The extensive collaboration features and global adoption of Microsoft Teams make it a high-value target for both cybercriminals and state-sponsored actors. Threat actors abuse its core capabilities – messaging chat, calls and meetings, and video-based screen-sharing – at different points along th...

Connect with us at the Gartner Security & Risk Management Summit

Security professionals visiting booths scattered around a hall, eager for solutions to today’s top cybersecurity challenges to protect their resources and people. The hum of hundreds of conversations. Presenters in packed sessions sharing expertise, trends, and stories to energize attendees. Few...

Explore how to secure AI by attending our Learn Live Series

As organizations develop, use, and increasingly rely on AI applications, they must address new and amplified security risks. Are you prepared to secure your environment for AI adoption? How about identifying threats to your AI and safeguarding data? Register to attend one or all our Learn Live...

Analyzing open-source bootloaders: Finding vulnerabilities faster with AI

By leveraging Microsoft Security Copilot to expedite the vulnerability discovery process, Microsoft Threat Intelligence uncovered several vulnerabilities in multiple open-source bootloaders, impacting all operating systems relying on Unified Extensible Firmware Interface UEFI Secure Boot as well ...

AI jailbreaks: What they are and how they can be mitigated

Generative AI systems are made up of multiple components that interact to provide a rich user experience between the human and the AI models. As part of a responsible AI approach, AI models are protected by layers of defense mechanisms to prevent the production of harmful content or being used to...

Navigating privacy in a data-driven world with Microsoft Priva

Data protection and privacy have become business imperatives. In a global survey conducted by Microsoft and leaders in the academic privacy space, 90 percent of respondents said they would not buy from an organization that does not properly protect its data.1 More than ever, people have a high...

​​Expanding cloud logging to give customers deeper security visibility

In response to the increasing frequency and evolution of nation-state cyberthreats, Microsoft is taking additional steps to protect our customers and increase the secure-by-default baseline of our cloud platforms. These steps are the result of close coordination with commercial and government...

Forrester names Microsoft a Leader in 2023 Infrastructure-as-a-Service Platform Native Security report

As we continue to drive toward making the world safer and more productive for all, it is vital we empower our customers to secure every aspect of their organization. Each day we are seeing more advanced security threats as bad actors develop new tactics that aim to take advantage of businesses as...

Getting started with the CDMC framework—Microsoft’s guide to cloud data management

On March 20, 2023, Microsoft announced the successful completion of the Cloud Data Management Capabilities CDMC certification. As a proponent of wider industry standards, I was fortunate to be part of Microsoft’s executive team working to achieve this important milestone. Beginning in 2020, we...

Join us at Microsoft Secure to discover the latest security solutions

Microsoft Secure is our first flagship event designed just for security professionals. On March 28, 2023, we will bring together security professionals from around the world to explore security information and event management SIEM and extended detection and response XDR, threat intelligence, AI,...

International Women’s Day: The power of diversity to build stronger cybersecurity teams

Women’s History Month is a special time for me as I reflect on all the great innovations women have made over the years. Women have driven technology forward throughout history. Notable women in cybersecurity like cryptologists Agnes Meyer Driscoll and Genevieve Grotjan Feinstein worked behind th...

Microsoft Intune: 5 endpoint management predictions for 2023

The end of the year typically brings with it a small library of reports with predictions for the year ahead. The value in these reports is less in the precise predictions themselves—given how interconnected the world is, no one has a perfect crystal ball. Rather, the forecasts help frame the...

Learn the latest cybersecurity techniques at the Microsoft Security Summit

In a world marked by change and uncertainty, innovation is more than a nice-to-have—it’s vital to any healthy organization. But fearless innovation becomes impossible when gaps in security can put those ideas at risk. Many organizations try to increase their defenses by piecing together a patchwo...

Microsoft CRSP shares the ways human behavior affects compromise recovery

The Microsoft Compromise Recover Security Practice CRSP is a worldwide team of cybersecurity experts operating in most countries, across all organizations public and private, with deep expertise to secure an environment post-security breach and to help you prevent a breach in the first place. As ...

A Leader in multiple Zero Trust security categories: Industry analysts weigh in

The massive shift toward remote and hybrid work over the last two years has prompted many security professionals to reassess where siloed security may create vulnerabilities.1 For that reason, Zero Trust has become the gold standard for enterprise security. An effective Zero Trust approach requir...

How Microsoft can help reduce insider risk during the Great Reshuffle

These are exciting and demanding days for organizations adapting to hybrid work realities, including a wider distributed workforce and more rapid change in employee roles. Organizations are becoming more agile as they refocus on employee onboarding and empowerment, opportunities with third-party...

CRSP: The emergency team fighting cyber attacks beside customers

What is CRSP? Microsoft Global Compromise Recovery Security Practice. Who is CRSP? We are a worldwide team of cybersecurity experts operating in most countries, across all organizations public and private, with deep expertise to secure an environment post-security breach and to help you prevent a...

Why threat protection is critical to your Zero Trust security strategy

The corporate network perimeter has been completely redefined. Many IT leaders are adopting a Zero Trust security model where identities play a critical role in helping act as the foundation of their modern cybersecurity strategy. As a result, cybercriminals have shifted their focus and identitie...

Announcing the new Security Engineering website

To meet users’ expectations for security when using a product or cloud service, security must be an integral part of all aspects of the lifecycle. We all know this, and yet time has proven that this is far easier said than done because there is no single approach nor silver bullet that works in...

When AI infrastructure becomes the target: Securing gateways and control points

In this article 1. AI workloads are becoming high-value control points 2. Case study 1: LiteLLM gateway compromise 3. Case study 2: RAGFlow compromise 4. Case study 3: Kestra compromise 5. Mitigation and protection guidance 6. MITRE ATT&CK techniques observed 7. References 8. Learn more AI is...

Enhancing AI security through global AI red teaming

In this article 1. Building a global alliance 2. What the research focuses on 3. Why this matters Most AI safety testing still happens inside the walls of individual organizations. That has resulted in a fundamental disconnect: many of the highest-risk failure modes in modern AI systems require...

Defending SaaS-based applications against ShinyHunters OAuth abuse

In this article 1. Attack chain overview 2. Improving visibility into Salesforce OAuth abuse 3. Mitigation and protection guidance 4. Learn more In a series of campaigns observed between mid-2025 and mid-2026, Microsoft identified threat actor activity with overlapping tradecraft commonly...

New Forrester Total Economic Impact™ study projects a 124% ROI from unifying with Microsoft Security

Across many industries, organizations are unifying security and putting AI agents to work. Security teams are utilizing agents that reason, decide, and act on their behalf, under their governance. At Microsoft, we see this firsthand—more than 80% of the Fortune 500 are already using AI.1 The...

AI is accelerating cyberattacks—here’s how to stay ahead

In March, we wrote that identity security has become the new pressure point for modern cyberattacks. Since then, AI has only increased that pressure. AI helps cyberattackers move faster across the attack chain: personalizing social engineering at scale, automating reconnaissance, analyzing leaked...

Turn specs into evals for any agent with ASSERT

Today, we’re releasing Adaptive Spec-driven Scoring for Evaluation and Regression Testing ASSERT, an open-source framework for turning natural-language behavior specifications into executable evaluations. Every team building an AI system starts with a clear intention for the behaviors they want t...

Microsoft Build 2026: Securing code, agents, and models across the development lifecycle

In this article 1. Secure your code 2. Secure your agents 3. Trust agents with your data 4. Secure your models 5. Trust starts with security Today, developers and security teams are caught in growing tension. AI is accelerating development and introducing new issues around insecure code, opaque...