The critical role of Zero Trust in securing our world

We are operating in the most complex cybersecurity landscape that we’ve ever seen. While our current ability to detect and respond to attacks has matured incredibly quickly in recent years, bad actors haven’t been standing still. Large-scale attacks like those pursued by Nobelium1 and Hafnium,...

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...

Center for Threat-Informed Defense teams up with Microsoft, partners to build the ATT&CK® for Containers matrix

The MITRE ATT&CK® for Containers matrix was published today, establishing an industry knowledge base of attack techniques associated with containerization and related technologies that are increasingly more ubiquitous in the current computing landscape. Microsoft is happy to have contributed and...

How far have we come? The evolution of securing identities

The security community is continuously changing, growing, and learning from each other to better position the world against cyber threats. In the latest Voice of the Community blog series post, Microsoft Product Marketing Manager Natalia Godyla talks with Troy Hunt, founder of Have I Been Pwned,...

Automating threat actor tracking: Understanding attacker behavior for intelligence and contextual alerting

As seen in recent sophisticated cyberattacks, especially human-operated campaigns, it’s critical to not only detect an attack as early as possible but also to rapidly determine the scope of the compromise and predict how it will progress. How an attack proceeds depends on the attacker’s goals and...

Advice for incident responders on recovery from systemic identity compromises

As Microsoft alongside our industry partners and the security community continues to investigate the extent of the Solorigate attack, our goal is to provide the latest threat intelligence including IOCs and guidance across our products and solutions to help the community fight back against, harde...

Meet the Microsoft Pluton processor – The security chip designed for the future of Windows PCs

The role of the Windows PC and trust in technology are more important than ever as our devices keep us connected and productive across work and life. Windows 10 is the most secure version of Windows ever, built with end-to-end security for protection from the edge to the cloud all the way down to...

3 ways Microsoft helps build cyber safety awareness for all

This tumultuous year has brought paradigm shifts across every facet of daily life. A global pandemic has pushed much of our lives online—work, school, entertainment, shopping, and socializing. But one thing remains unchanged: people everywhere share a common need for safety. Today, our need for...

How to organize your security team: The evolution of cybersecurity roles and responsibilities

Digital transformation, cloud computing, and a sophisticated threat landscape are forcing everyone to rethink the functions of each role on their security teams, from Chief Information Security Officers CISOs to practitioners. With billions of people around the globe working from home, changes to...

Secured-core PCs help customers stay ahead of advanced data theft

Researchers at the Eindhoven University of Technology recently revealed information around "Thunderspy," an attack that relies on leveraging direct memory access DMA functionality to compromise devices. An attacker with physical access to a system can use Thunderspy to read and copy data even fro...

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...

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...

Understand and improve your security posture with Microsoft 365

I kickstarted 2019 with a “dry,” keto January. And, as so often happens, I found a parallel between my personal life and my chosen industry, cybersecurity. In this case, it was measurement. How do you know if you’re healthy? There are clear indicators when you’re not healthy, such as a sore throa...

Microsoft Incident Response lessons on preventing cloud identity compromise

Microsoft observed a surge in cyberattacks targeting identities in 2023, with attempted password-based attacks increasing by more than tenfold in the first quarter of 2023 compared to the same period in 2022. Threat actors leverage compromised identities to achieve a significant level of access t...

New Microsoft identity and data security capabilities to accelerate CMMC compliance for the Defense Industrial Base

As Department of Defense DoD Chief Information Officer Hon. John Sherman said recently, Cybersecurity Maturity Model Certification CMMC is necessary to ensure that the United States raises the bar for protecting sensitive information.1 The DoD is leading by example towards this goal by implementi...

The Microsoft Intune Suite fuels cyber safety and IT efficiency

Today marks a significant shift in endpoint management and security. Were launching the Microsoft Intune Suite, which unifies mission-critical advanced endpoint management and security solutions into one simple bundle. The new Intune Suite can simplify our customers’ endpoint management experienc...

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...

New “Prestige” ransomware impacts organizations in Ukraine and Poland

The Microsoft Threat Intelligence Center MSTIC has identified evidence of a novel ransomware campaign targeting organizations in the transportation and related logistics industries in Ukraine and Poland utilizing a previously unidentified ransomware payload. We observed this new ransomware, which...

Detecting malicious key extractions by compromised identities for Azure Cosmos DB

Azure Cosmos DB is a fully managed NoSQL cloud database service for modern app development. It offers a variety of advanced built-in features, such as automatic worldwide data replication, lightning-fast response types, and a variety of APIs. In this blog post, we describe security practices for...

How cyberattacks are changing according to new Microsoft Digital Defense Report

In 2021, cybercrime has become more sophisticated, widespread, and relentless. Criminals have targeted critical infrastructure—healthcare,1 information technology,2 financial services,3 energy sectors4—with headline-grabbing attacks that crippled businesses and harmed consumers. But there are...

Microsoft and NIST collaborate on EO to drive Zero Trust adoption

2020s Nobelium attack sent shock waves through both government and private sectors. 2021 has already seen large-scale nation-state attacks such as Hafnium1 alongside major ransomware attacks2 on critical infrastructure. The breadth and boldness of these attacks show that, far from being deterred,...

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...

How to apply a Zero Trust approach to your IoT solutions

For many, 2020 was a year of survival as they rapidly transformed their businesses in response to a new normal. From enabling new remote and hybrid work models to implementing new technology to help optimize operations, the last year has seen a significant uptick in the proliferation and role of...

Turning the page on Solorigate and opening the next chapter for the security community

The recent SolarWinds attack is a moment of reckoning. Today, as we close our own internal investigation of the incident, we continue to see an urgent opportunity for defenders everywhere to unify and protect the world in a more concerted way. We also see an opportunity for every company to adopt...

Why operational resilience will be key in 2021, and how this impacts cybersecurity

The lessons we have learned during the past 12 months have demonstrated that the ability to respond to and bounce back from adversity in general, can impact the short-and long-term success of any organization. It can even dictate the leaders and laggards in any industry. When we take into...

Microsoft Build brings new innovations and capabilities to keep developers and customers secure

As both organizations and developers adapt to the new reality of working and collaborating in a remote environment, it’s more important than ever to ensure that their experiences are secure and trusted. As part of this week’s Build virtual event, we’re introducing new Identity innovation to help...

Empowering your remote workforce with end-user security awareness

COVID-19 has rapidly transformed how we all work. Organizations need quick and effective user security and awareness training to address the swiftly changing needs of the new normal for many of us. To help our customers deploy user training quickly, easily and effectively, we are announcing the...

Guarding against supply chain attacks—Part 2: Hardware risks

The challenge and benefit of technology today is that it’s entirely global in nature. This reality is brought into focus when companies assess their supply chains, and look for ways to identify, assess, and manage risks across the supply chain of an enterprise. Part 2 of the “Guarding against...

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...

CISO series: Lessons learned—4 priorities to achieve the largest security improvements

In my past life as CISO, Ive worked for small companies, state governments, and large enterprises, and one thing that has been true at all of them is that there is an infinite number of security initiatives in each organization you could implement, yet the resources to accomplish those tasks are...

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...

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,...

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...

Malicious OAuth applications abuse cloud email services to spread spam

Microsoft researchers recently investigated an attack where malicious OAuth applications were deployed on compromised cloud tenants and then used to control Exchange Online settings and spread spam. The investigation revealed that the threat actor launched credential stuffing attacks against...

Destructive malware targeting Ukrainian organizations

Microsoft Threat Intelligence Center MSTIC has identified evidence of a destructive malware operation targeting multiple organizations in Ukraine. This malware first appeared on victim systems in Ukraine on January 13, 2022. Microsoft is aware of the ongoing geopolitical events in Ukraine and...

Afternoon Cyber Tea: Microsoft’s cybersecurity response to COVID-19

On February 25, 2020, Microsoft Chief Information Security Officer CISO Bret Arsenault was attending the RSA Conference in San Francisco when the city declared a state of emergency because of COVID-19. Shortly after flying back to Seattle, Bret learned of the first death from the coronavirus in...

What tracking an attacker email infrastructure tells us about persistent cybercriminal operations

From March to December 2020, we tracked segments of a dynamically generated email infrastructure that attackers used to send more than a million emails per month, distributing at least seven distinct malware families in dozens of campaigns using a variety of phishing lures and tactics. These...

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...

A “quick wins” approach to securing Azure Active Directory and Office 365 and improving your security posture

In the last post, we discussed Office 365 and how enabling certain features without understanding all the components can lead to a false sense of security. We demonstrated how implementing a break glass account, multi-factor authentication MFA, and the removal of legacy authentication can help...

Modernize secure access for your on-premises resources with Zero Trust

Change came quickly in 2020. More likely than not, a big chunk of your workforce has been forced into remote access. And with remote work came an explosion of bring-your-own-device BYOD scenarios, requiring your organization to extend the bounds of your network to include the entire internet and...

Data governance matters now more than ever

Knowing, protecting, and governing your organizational data is critical to adhere to regulations and meet security and privacy needs. Arguably, that’s never been truer than it is today as we face these unprecedented health and economic circumstances. To help organizations to navigate privacy duri...

Secure the software development lifecycle with machine learning

Every day, software developers stare down a long list of features and bugs that need to be addressed. Security professionals try to help by using automated tools to prioritize security bugs, but too often, engineers waste time on false positives or miss a critical security vulnerability that has...

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...

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...

Updating your cybersecurity strategy to enable and accelerate digital transformation

This post is authored by Cyril Voisin, Chief Security Advisor, Enterprise Cybersecurity Group. Nowadays every company is becoming a digital company to some extent. Digital transformation changes the way business is done. For example, it puts more control into the hands of employees, who now deman...

Here is Homeland Security, black swans, and thwarted cyberattacks

Last week, I had the honor of addressing The Homeland Security Training Institute HSTI at the College of DuPage as part of the HSTI Live educational series. The event featured other prominent speakers at the forefront of cybersecurity defense, including: Dave Tyson, CEO of CISO Insights, a global...

ASCII smuggling crosses over from AI prompt injection to phishing evasion

In this article 1. What is ASCII smuggling? 2. Writing a practical ASCII-smuggling signature 3. What we observed: ASCII smuggling repurposed for phishing 4. What is known and what is new 5. Is there a detection gap? 6. Mitigation and protection guidance 7. References 8. Learn More Microsoft...

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...

Defense at AI speed: Microsoft’s new multi-model agentic security system tops leading industry benchmark

In this article 1. AI-powered vulnerability discovery at hyper-scale 2. Codename: MDASH—Microsoft Security’s new multi-model agentic scanning harness 3. Using codename MDASH for security research 4. The 5.12.2026 Patch Tuesday cohort 5. Two deep dives 1. CVE-2026-33827—Remote unauthenticated UAF ...