Inside Microsoft Threat Protection: Solving cross-domain security incidents through the power of correlation analytics

In theory, a cyberattack can be disrupted at every phase of the attack chain. In reality, however, defense stack boundaries should overlap in order to be effective. When a threat comes via email, for example, even with good security solutions in place, organizations must assume that the threat ma...

Moving to cloud-based SIEM: the cost advantage

Companies weigh multiple factors in any technology implementation, balancing risks with business needs and IT capabilities. And while the same is true with cloud-based security information and event management SIEM solutions, cost overwhelmingly shapes the discussion as well. For example, accordi...

Stay ahead of multi-cloud attacks with Azure Security Center

The COVID-19 crisis has challenged just about every business on the planet to quickly adapt and transform. With massive workforces now remote, IT administrators and security professionals are under increased pressure to keep these workers connected and productive while combating evolving threats,...

Making it easier for your remote workforce to securely access all the apps they need, from anywhere

Since I published my last blog, Five identity priorities for 2020, COVID-19 has upended the way we work and socialize. Now that physical distancing has become essential to protect everyone’s health, more people than ever are going online to connect and get things done. As we all adjust to a new...

Empower Firstline Workers with Azure AD and YubiKey passwordless authentication

At the end of February, Microsoft announced the FIDO2 passwordless support for hybrid environments. The integration of FIDO2-based YubiKeys and Azure Active Directory Azure AD is a game changer. It combines the ubiquity of Azure AD, the usability of YubiKey, and the security of both solutions to...

How companies can prepare for a heightened threat environment

With high levels of political unrest in various parts of the world, it’s no surprise we’re also in a period of increased cyber threats. In the past, a company’s name, political affiliations, or religious affiliations might push the risk needle higher. However, in the current environment any compa...

Introducing Microsoft Application Inspector

Modern software development practices often involve building applications from hundreds of existing components, whether they’re written by another team in your organization, an external vendor, or someone in the open source community. Reuse has great benefits, including time-to-market, quality, a...

The evolution of Microsoft Threat Protection, April update

Microsoft Threat Protection continues to energize the threat protection market with our most recent announcements. Customers are excited about the launch of Microsoft Defender Advanced Threat Protection ATP, which extends Microsoft’s best in class endpoint security to Mac and adds powerful new...

128 Seconds to disruption: Microsoft Defender stops ransomware at QNET

In this article 1. What is device isolation? 2. Case study: QNET 3. Attack chain overview 4. MITRE ATT&CK techniques observed 5. References 6. Learn more Microsoft Defender's attack disruption now includes device isolation, a new response action that extends autonomous protection directly to...

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...

Unraveling the techniques of Mac ransomware

Ransomware continues to be one of the most prevalent and impactful threats affecting organizations, with attackers constantly evolving their techniques and expanding their tradecraft to cast a wider net of potential targets. This is evident in the range of industries, systems, and platforms...

Detecting and preventing LSASS credential dumping attacks

Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...

MagicWeb: NOBELIUM’s post-compromise trick to authenticate as anyone

Updated August 26, 2022: Added instructions to enable collection of AD FS event logs in order to search for Event ID 501, and added a new resource for AD FS audit logging in Microsoft Sentinel. Microsoft security researchers have discovered a post-compromise capability we’re calling MagicWeb, whi...

Microsoft is a Leader in the 2021 Forrester Endpoint Security Software as a Service Wave

We are excited to share that Microsoft has been named a Leader in The Forrester Wave: Endpoint Security Software as a Service, Q2 20211, receiving one of the highest scores in the strategy category and among the top three scores in the current offering category. Forrester notes that “the focus on...

Siemens USA CISO: 3 essentials to look for in a cloud provider

In the latest episode of my series, The Shiproom, I spoke with Kurt John, Chief Cybersecurity Officer CISO at Siemens USA. Kurt is listed in Security Magazine’s Top 10 most influential cybersecurity leaders, and he also serves on a special cybersecurity committee organized by the...

Forrester TEI study: Azure Sentinel delivers 201 percent ROI over 3 years and a payback of less than 6 months

2020 has been a transitional year, ushering in broad changes in how, and where, we work. Security operations SecOps teams face more significant challenges than ever as they protect the organization in this rapidly changing environment. These teams need a flexible, cost-effective, and efficient...

Microsoft Intelligent Security Association expands to include managed security service providers

We’d planned a splashy party at Microsoft Inspire to announce our newest Microsoft Intelligent Security Association MISA members and introduce them to association members, but given our world today, I am instead picturing you reading this announcement curled up in a chair with a cup of coffee...

Making Azure Sentinel work for you

Microsoft Azure Sentinel is the first Security Incident and Event Management SIEM solution built into a major public cloud platform that delivers intelligent security analytics across enterprise environments and offers automatic scalability to meet changing needs. This new white paper outlines be...

Enable remote work while keeping cloud deployments secure

As our customers shift to remote work in response to the COVID-19 outbreak, many have asked how to maintain the security posture of their cloud assets. Azure Security Center security controls can help you monitor your security posture as usage of cloud assets increases. These are three common...

Alternative ways for security professionals and IT to achieve modern security controls in today’s unique remote work scenarios

With the bulk of end users now working remotely, legacy network architectures that route all remote traffic through a central corporate network are suddenly under enormous strain. The result can be poorer performance, productivity, and user experience. Many organizations are now rethinking their...

Welcoming and retaining diversity in cybersecurity

I doubt I’d be in the role I am now if leaders at one of my first jobs hadn’t taken an interest in my career. Although I taught myself to code when I was young, I graduated from college with a degree in English Literature and began my post-college career in editorial. I worked my way up to...

Work remotely, stay secure—guidance for CISOs

With many employees suddenly working from home, there are things an organization and employees can do to help remain productive without increasing cybersecurity risk. While employees in this new remote work situation will be thinking about how to stay in touch with colleagues and coworkers using...

Mattress Firm deployed Azure Active Directory to securely connect Firstline Workers to their SaaS apps and to each other

Today, we have another interesting story for the Voice of the Customer blog series. Tony Miller and Jon Sider of Mattress Firm deployed Azure Active Directory Azure AD to create a secure authentication experience for employees, including their Firstline Workforce. Much like sleep and a good...

Step 7. Discover shadow IT and take control of your cloud apps: top 10 actions to secure your environment

The “Top 10 actions to secure your environment” series outlines fundamental steps you can take with your investment in Microsoft 365 security solutions. In “Step 7. Discover shadow IT and take control of cloud apps,” you’ll learn how to set up Microsoft Cloud App Security MCAS to identify, access...

Solving the TLS 1.0 problem

The use of Transport Layer Security TLS encryption for data in transit is a common way to help ensure the confidentiality and integrity of data transmitted between devices, such as a web server and a computer. However, in recent years older versions of the protocol have been shown to have...

Star Blizzard refines phishing and malware delivery with the RedFlick technique

In this article 1. Star Blizzard TTPs observed in 2026 2. Defending against Star Blizzard and RedFlick-related activity 3. Microsoft Defender detections 4. Hunting queries 5. Indicators of compromise Since January 2026, Microsoft has observed Russian state threat actor Star Blizzard evolve their...

Securing CI/CD in an agentic world: Claude Code Github action case

Microsoft Threat Intelligence discovered that Anthropic's Claude Code GitHub Action could expose CI/CD workflow secrets when AI agents process untrusted GitHub content, including issue bodies, pull request descriptions, and comments. We found that while Claude Code Action supported environment...

What’s new in Microsoft Security: May 2026

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 AI it protects. As organizations accelerate AI adoption, security teams are navigating...

Defending against evolving identity attack techniques

In today’s evolving cyber threat landscape, threat actors are committed to advancing the sophistication of their attacks. The increasing adoption of essential security features like multifactor authentication MFA, passwordless solutions, and robust email protections has changed many aspects of th...

​​Explore practical best practices to secure your data with Microsoft Purview​​

According to the Microsoft 2024 Data Security Index, organizations experience an average of 156 data security incidents annually, and this cyberthreat continues to be a top concern for data security decision-makers.1 A full 82% of security decision-makers believe a comprehensive, fully integrated...

Microsoft Security innovations from 2022 to help you create a safer world today

The start of a new year is always a great time for reflection—to be grateful for all we have and the progress security teams have made as well as look ahead to how we can reshape the security landscape. I use this time to think about goals for the future, and to reflect on the highlights,...

DEV-0139 launches targeted attacks against the cryptocurrency industry

Over the past several years, the cryptocurrency market has considerably expanded, gaining the interest of investors and threat actors. Cryptocurrency itself has been used by cybercriminals for their operations, notably for ransom payment in ransomware attacks, but we have also observed threat...

Microsoft named a Leader in the 2022 Gartner® Magic Quadrant™ for Security Information and Event Management

Security operations teams are overwhelmed trying to protect their organizations against an onslaught of cyberattacks, including a 92 percent rise in ransomware attacks.1 Too often, existing security tools are siloed or not designed to meet the needs of today’s hybrid cloud environment. The result...

Microsoft Defender Experts for Hunting proactively hunts threats

Today, we announced the general availability of Microsoft Defender Experts for Hunting to support organizations and their cybersecurity employees with proactive threat hunting. Defender Experts for Hunting was created for customers who have a robust security operations center but want Microsoft t...

Anatomy of a DDoS amplification attack

Amplification attacks are one of the most common distributed denial of service DDoS attack vectors. These attacks are typically categorized as flooding or volumetric attacks, where the attacker succeeds in generating more traffic than the target can process, resulting in exhausting its resources...

Windows 11 offers chip to cloud protection to meet the new security challenges of hybrid work

As the world has changed over the past 18-months, companies have been wrestling with ways to keep employees and data protected as they support new ways of hybrid working. We built Windows 11 to be the most secure Windows yet with built-in chip to cloud protection that ensures company assets stay...

3 key resources to accelerate your passwordless journey

Every organization today faces password-related challenges—phishing campaigns, productivity loss, and password management costs to name just a few. The risks now outweigh the benefits when it comes to passwords. Even the strongest passwords are easily phish-able and vulnerable to attacks, such as...

Accessibility and usability for all in Azure Sentinel

As a father of a child on the Autism spectrum who relies completely on digital media for his learning, I fully appreciate the impact that digital accessibility can have on people with disabilities. Designing with accessibility in mind greatly expands the impact of Microsoft solutions. What many...

Resources for accelerating your Zero Trust journey

For many organizations, 2020 was the year that finally saw remote work become a reality on a global scale. As many people begin transitioning back to the office, many organizations are thinking about how they can transition from a remote workforce to a more permanent hybrid workplace. We recently...

Blue Cedar partners with Microsoft to combat BYOD issues

This blog post is part of the Microsoft Intelligent Security Association guest blog series. Learn more about MISA. Bring Your Own Device BYOD has been a divisive topic within corporations for years. Employees wanted the convenience of working on their own smart devices, and business decision-make...

Rethinking cyber scenarios—learning (and training) as you defend

In two recent posts I discussed with Circadence the increasing importance of gamification for cybersecurity learning and how to get started as a practitioner while being supported by an enterprise learning officer or security team lead. In this third and final post in the series, Keenan and I...

Microsoft Cloud Security solutions provide comprehensive cross-cloud protection

The infrastructure, data, and apps built and run in the cloud are the foundational building blocks for a modern business. No matter where you are in your cloud journey, you likely utilize every layer of the cloud—from infrastructure as a service IaaS to platform as a service PaaS to software as a...

Defend your digital landscape with Microsoft 365

What is it about the middle of the night that brings our fears to the surface? For me, it’s the unknown dangers that may confront my young daughter and how I will protect her. Fear of the unknown can also disrupt the sleep of a chief information security officer CISO who worries about the...

Securing our future: July 2026 progress report on Microsoft’s Secure Future Initiative

Security is never finished. That conviction is where the Secure Future Initiative SFI started two years ago and continues to guide us today. AI is reshaping cybersecurity. Cyberattackers can discover vulnerabilities, chain attack paths, and scale exploitation faster than manual approaches allow...

Cryptojacking: Understanding and defending against cloud compute resource abuse

In cloud environments, cryptojacking – a type of cyberattack that uses computing power to mine cryptocurrency – takes the form of cloud compute resource abuse, which involves a threat actor compromising legitimate tenants. Cloud compute resource abuse could result in financial loss to targeted...

How Microsoft Purview and Priva help simplify data protection

At Microsoft Security, we understand how challenging it is to protect your most important asset, your data, in today’s threat landscape. You’re faced with evolving challenges—from empowering employees for greater productivity to eliminating gaps in your infrastructure—all while trying to protect...

5 cybersecurity capabilities announced at Microsoft Ignite 2022 to help you secure more with less

Protecting your business against growing security threats is a huge priority. Companies of all sizes have increased their spending on cybersecurity solutions to protect their operations over the last year. User spending for the information security and risk management market will grow to USD169.2...

Cyber Signals: 3 strategies for protection against ransomware

The “as a service” business model has gained widespread popularity as growing cloud adoption has made it possible for people to access important services through third-party providers. Given the convenience and agility of service offerings, perhaps it shouldn’t be surprising that the “as a servic...

Looking for the ‘Sliver’ lining: Hunting for emerging command-and-control frameworks

Microsoft has observed the Sliver command-and-control C2 framework now being adopted and integrated in intrusion campaigns by nation-state threat actors, cybercrime groups directly supporting ransomware and extortion, and other threat actors to evade detection. We’ve seen these actors use Sliver...

Microsoft announces new solutions for threat intelligence and attack surface management

Uncover adversaries with new Microsoft Defender threat intelligence products The threat landscape is more sophisticated than ever and damages have soared—the Federal Bureau of Investigations 2021 IC3 report found that the cost of cybercrime now totals more than USD6.9 billion.1 To counter these...