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...

Zero Day Quest 2025: $1.6 million awarded for vulnerability research

This month, the Microsoft Security Response Center recently welcomed some of the world’s most talented security researchers at Microsoft’s Zero Day Quest, the largest live hacking competition of its kind. The inaugural event challenged the security community to focus on the highest-impact securit...

Zero Day Quest 2025: $1.6 million awarded for vulnerability research

This month, the Microsoft Security Response Center recently welcomed some of the world’s most talented security researchers at Microsoft’s Zero Day Quest, the largest live hacking competition of its kind. The inaugural event challenged the security community to focus on the highest-impact securit...

​​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Just as nature sheds its winter coat, it's time to prune outdated security measures and plant the seeds of a more robust defense.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...

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...

Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability

Microsoft has released security fixes to address a massive set of 126 flaws affecting its software products, including one vulnerability that it said has been actively exploited in the wild. Of the 126 vulnerabilities, 11 are rated Critical, 112 are rated Important, and two are rated Low in...

Patch Tuesday, April 2025 Edition

Microsoft today released updates to plug at least 121 security holes in its Windows operating systems and software, including one vulnerability that is already being exploited in the wild. Eleven of those flaws earned Microsoft's most-dire "critical" rating, meaning malware or malcontents could...

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...

2025-04 .NET 8.0.15 Security Update for ARM64 Client (KB5056686)

2025-04 .NET 8.0.15 Security Update for ARM64 Client KB5056686...

NTFS Elevation of Privilege Vulnerability

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally...

Windows Mark of the Web Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Mark of the Web MOTW allows an unauthorized attacker to bypass a security feature over a network...

Windows Hello Spoofing Vulnerability

Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally...

Outlook for Android Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Outlook for Android allows an unauthorized attacker to disclose information over a network...

Windows Hello Security Feature Bypass Vulnerability

Weak authentication in Windows Hello allows an authorized attacker to bypass a security feature over a network...

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...

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 ...

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 ...

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...

URGENT: Microsoft Patches 57 Security Flaws, Including 6 Actively Exploited Zero-Days

Microsoft on Tuesday released security updates to address 57 security vulnerabilities in its software, including a whopping six zero-days that it said have been actively exploited in the wild. Of the 56 flaws, six are rated Critical, 50 are rated Important, and one is rated Low in severity...

.NET Core Elevation of Privilege Vulnerability (Mar 2025)

This host is missing an important security update according to Microsoft security update March 2025. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier:...