1546 matches found
Analyzing CVE-2025-31191: A macOS security-scoped bookmarks-based sandbox escape
In April 2024, Microsoft uncovered a vulnerability in macOS that could allow specially crafted codes to escape the App Sandbox and run unrestricted on the system. An attacker could create an exploit to escape the App Sandbox without user interaction required for any sandboxed app using...
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...
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...
14 secure coding tips: Learn from the experts at Microsoft Build
Hey friends! If you are a developer, you know that writing clean and efficient code is just the starting point. Now, with AI playing a bigger role, secure coding isn't just a 'nice-to-have'—it's a must. Whether you're building web apps, working on cloud services, or adding AI to your projects,...
14 secure coding tips: Learn from the experts at Microsoft Build
Hey friends! If you are a developer, you know that writing clean and efficient code is just the starting point. Now, with AI playing a bigger role, secure coding isn't just a 'nice-to-have'—it's a must. Whether you're building web apps, working on cloud services, or adding AI to your projects,...
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...
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...
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...
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...
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...
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...
New whitepaper outlines the taxonomy of failure modes in AI agents
We are releasing a taxonomy of failure modes in AI agents to help security professionals and machine learning engineers think through how AI systems can fail and design them with safety and security in mind. The taxonomy continues Microsoft AI Red Team's work to lead the creation of systematizati...
New whitepaper outlines the taxonomy of failure modes in AI agents
We are releasing a taxonomy of failure modes in AI agents to help security professionals and machine learning engineers think through how AI systems can fail and design them with safety and security in mind. The taxonomy continues Microsoft AI Red Team's work to lead the creation of systematizati...
Understanding the threat landscape for Kubernetes and containerized assets
The dynamic nature of containers can make it challenging for security teams to detect runtime anomalies or pinpoint the source of a security incident, presenting an opportunity for attackers to stay undetected. Microsoft Threat Intelligence has observed threat actors taking advantage of unsecured...
Securing our future: April 2025 progress report on Microsoft’s Secure Future Initiative
The Microsoft Secure Future Initiative SFI stands as the largest cybersecurity engineering project in history and most extensive effort of its kind at Microsoft. Since inception, we've dedicated the equivalent of 34,000 engineers working full-time for 11 months to mitigate risks and address the...
Microsoft’s Secure by Design journey: One year of success
Cybersecurity is one of the top risks facing businesses. Organizations are struggling to navigate the ever-evolving cyberthreat landscape in which 600 million identity attacks are carried out daily.1 The median time for a cyberattacker to access private data from phishing is 1 hour and 12 minutes...
Cyber Signals Issue 9 | AI-powered deception: Emerging fraud threats and countermeasures
Introduction | Security snapshot | Threat briefing Defending against attacks | Expert profile Microsoft maintains a continuous effort to protect its platforms and customers from fraud and abuse. From blocking imposters on Microsoft Azure and adding anti-scam features to Microsoft Edge, to fightin...
Threat actors misuse Node.js to deliver malware and other malicious payloads
Since October 2024, Microsoft Defender Experts DEX has observed and helped multiple customers address campaigns leveraging Node.js to deliver malware and other payloads that ultimately lead to information theft and data exfiltration. While traditional scripting languages like Python, PHP, and...
Transforming security with Microsoft Security Exposure Management initiatives
Just as nature sheds its winter coat, it's time to prune outdated security measures and plant the seeds of a more robust defense. For years, Microsoft Secure Score has served as a foundational tool for organizations to assess their security posture. By providing a numerical representation of...
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...
The ultimate guide to Microsoft Security at RSAC 2025
The Ultimate Guide to Microsoft Security at RSAC 2025 So you just finished watching Microsoft Secure. That means by now, you’ve heard about our new protections for AI and Microsoft Security Copilot agents. These innovations will be the focus of Microsoft Security’s sessions and activities at RSAC...
Stopping attacks against on-premises Exchange Server and SharePoint Server with AMSI
Exchange Server and SharePoint Server are business-critical assets and considered crown jewels for many organizations, making them attractive targets for attacks. To help customers protect their environments and respond to these attacks, Exchange Server and SharePoint Server now integrate with th...
How cyberattackers exploit domain controllers using ransomware
In recent years, human-operated cyberattacks have undergone a dramatic transformation. These attacks, once characterized by sporadic and opportunistic attacks, have evolved into highly sophisticated, targeted campaigns aimed at causing maximum damage to organizations, with the average cost of a...
Exploitation of CLFS zero-day leads to ransomware activity
Microsoft Threat Intelligence Center MSTIC and Microsoft Security Response Center MSRC have discovered post-compromise exploitation of a zero-day elevation of privilege vulnerability in the Windows Common Log File System CLFS against a small number of targets. The targets include organizations in...
Meet the Deputy CISOs who help shape Microsoft’s approach to cybersecurity
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...
Tech Accelerator: Azure security and AI adoption
Are you looking for guidance on how to effectively integrate security best practices within your Azure and AI projects? We know the pace of technological innovation offers as many opportunities as it does challenges. However, security cannot be an afterthought as you create Azure deployments and...
Threat actors leverage tax season to deploy tax-themed phishing campaigns
As Tax Day approaches in the United States on April 15, Microsoft has observed several phishing campaigns using tax-related themes for social engineering to steal credentials and deploy malware. These campaigns notably use redirection methods such as URL shorteners and QR codes contained in...
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...
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 ...
New innovations in Microsoft Purview for protected, AI-ready data
The Microsoft Fabric and Microsoft Purview teams are excited to be in Las Vegas from March 31 to April 2, 2025, for the second annual and highly anticipated Microsoft Fabric Community Conference. With more than 200 sessions, 13 focused tracks, 21 hands-on workshops, and two keynotes, attendees ca...
US Department of Labor’s journey to Zero Trust security with Microsoft Entra ID
For several years, Microsoft has been helping United States federal and state government groups, including military departments and civilian agencies, transition to a Zero Trust security model. Advanced features in Microsoft Entra ID have helped these organizations meet requirements to employ...
Microsoft unveils Microsoft Security Copilot agents and new protections for AI
In this age of AI, securing AI and using it to boost security are crucial for every organization. At Microsoft, we are dedicated to helping organizations secure their future with our AI-first, end-to-end security platform. One year ago, we launched Microsoft Security Copilot to empower defenders ...
AI innovation requires AI security: Hear what’s new at Microsoft Secure
When you’re secure—innovation happens. But, the fast pace of AI often outpaces traditional security measures, leaving gaps that bad actors can take advantage of. As a security professional, you’re the hero in this battle between protecting vast amounts of data while ensuring AI systems remain...
StilachiRAT analysis: From system reconnaissance to cryptocurrency theft
In November 2024, Microsoft Incident Response researchers uncovered a novel remote access trojan RAT we named StilachiRAT that demonstrates sophisticated techniques to evade detection, persist in the target environment, and exfiltrate sensitive data. Analysis of the StilachiRAT’s...
How MSRC coordinates vulnerability research and disclosure while building community
In an era where discovering and rapidly mitigating security vulnerabilities is more important than ever before, the Microsoft Security Response Center MSRC is at the center of this work. MSRC focuses on investigating vulnerabilities, coordinating their disclosure, and releasing security updates t...
Phishing campaign impersonates Booking .com, delivers a suite of credential-stealing malware
Starting in December 2024, leading up to some of the busiest travel days, Microsoft Threat Intelligence identified a phishing campaign that impersonates online travel agency Booking.com and targets organizations in the hospitality industry. The campaign uses a social engineering technique called...
New XCSSET malware adds new obfuscation, persistence techniques to infect Xcode projects
Microsoft Threat Intelligence has uncovered a new variant of XCSSET, a sophisticated modular macOS malware that infects Xcode projects, in the wild during routine threat hunting. Its first known variant since 2022, this latest XCSSET malware features enhanced obfuscation methods, updated...
Women’s History Month: Why different perspectives in cybersecurity and AI matter more than ever before
This Women’s History Month serves as a crucial moment for us to lead and continue to pave the way for a more inclusive future. I am truly honored to support my amazing women colleagues who continue to excel in their careers and am grateful to have so many allies who have extended their hands to...
Malvertising campaign leads to info stealers hosted on GitHub
In early December 2024, Microsoft Threat Intelligence detected a large-scale malvertising campaign that impacted nearly one million devices globally in an opportunistic attack to steal information. The attack originated from illegal streaming websites embedded with malvertising redirectors, leadi...
Silk Typhoon targeting IT supply chain
Executive summary: Microsoft Threat Intelligence identified a shift in tactics by Silk Typhoon, a Chinese espionage group, now targeting common IT solutions like remote management tools and cloud applications to gain initial access. While they haven't been observed directly targeting Microsoft...
Silk Typhoon targeting IT supply chain
Executive summary: Microsoft Threat Intelligence identified a shift in tactics by Silk Typhoon, a Chinese espionage group, now targeting common IT solutions like remote management tools and cloud applications to gain initial access. While they haven't been observed directly targeting Microsoft...
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...
The four stages of creating a trust fabric with identity and network security
How implementing a trust fabric strengthens identity and network Read the blog At Microsoft, we’re continually evolving our solutions for protecting identities and access to meet the ever-changing security demands our customers face. In a recent post, we introduced the concept of the trust fabric...
Microsoft is named a leader in the Forrester Wave for XDR
“Defenders think in lists, attackers think in graphs.”1 This remains a reality for the many organizations that operate across siloed security tools, fueling the demand on security operations SOC teams, as advanced cyberattacks continue to increase in frequency and speed. That’s where extended...
Exposed and vulnerable: Recent attacks highlight critical need to protect internet-exposed OT devices
Since late 2023, Microsoft has observed an increase in reports of attacks focusing on internet-exposed, poorly secured operational technology OT devices. Internet-exposed OT equipment in water and wastewater systems WWS in the US were targeted in multiple attacks over the past months by different...
6 insights from Microsoft’s 2024 state of multicloud risk report to evolve your security strategy
Multicloud computing has become the foundation for digital businesses, with 86% of organizations having already adopted a multicloud approach.1 However, for all its benefits around increased agility, flexibility, and choice, we also see unique challenges with multicloud—including the need to mana...
Moonstone Sleet emerges as new North Korean threat actor with new bag of tricks
Microsoft has identified a new North Korean threat actor, now tracked as Moonstone Sleet formerly Storm-1789, that uses both a combination of many tried-and-true techniques used by other North Korean threat actors and unique attack methodologies to target companies for its financial and...
Cyber Signals: Inside the growing risk of gift card fraud
In the ever-evolving landscape of cyberthreats, staying ahead of malicious actors is a constant challenge. Microsoft Threat Intelligence has observed that gift cards are attractive targets for fraud and social engineering practices. Unlike credit or debit cards, there’s no customer name or bank...
New Windows 11 features strengthen security to address evolving cyberthreat landscape
Ahead of the Microsoft Build 2024 conference, we announced a new class of Windows computers, Copilot+ PC. Alongside this exciting new class of PCs, we are introducing important security features and updates that make Windows 11 more secure for users and organizations and give developers the tools...
Threat actors misusing Quick Assist in social engineering attacks leading to ransomware
June 2024 update: At the end of May 2024, Microsoft Threat Intelligence observed Storm-1811 using Microsoft Teams as another vector to contact target users. Microsoft assesses that the threat actor uses Teams to send messages and initiate calls in an attempt to impersonate IT or help desk...