1372 matches found
Congratulations to the top MSRC 2026 Q2 security researchers!
Congratulations to the researchers recognized in the MSRC 2026 Q2 Security Researcher Leaderboard. This quarter marks the final quarterly points-based leaderboard as we transition to our updated researcher recognition program. We are grateful for the contributions of the security research communi...
Mitigating NTLM Relay Attacks by Default
Introduction In February 2024, we released an update to Exchange Server which contained a security improvement referenced by CVE-2024-21410 that enabled Extended Protection for Authentication EPA by default for new and existing installs of Exchange 2019. While we’re currently unaware of any activ...
Update on Microsoft Actions Following Attack by Nation State Actor Midnight Blizzard
This blog provides an update on the nation-state attack that was detected by the Microsoft Security Team on January 12, 2024. As we shared, on January 19, the security team detected this attack on our corporate email systems and immediately activated our response process. The Microsoft Threat...
Microsoft boosts its Microsoft 365 Insider Builds on Windows Bounty Program with higher awards and an expanded scope
Starting today, we are doubling the maximum bounty award for the Microsoft 365 Insider Bug Bounty Program to $30,000 USD for high impact scenarios, such as unauthenticated non-sandboxed code execution with no user interaction. We are also expanding the scope of our bounty program to include more...
Congratulations to the Top MSRC 2023 Q3 Security Researchers!
Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2023 Q3 Security Researcher Leaderboard are Wei,...
マイクロソフトは、Azure Bastion と Azure Container Registry におけるクロスサイトスクリプティング（XSS）脆弱性を緩和しました。
本ブログは、Microsoft mitigates set of cross-site scripting XSS vulnerabilities in Azure Bastion and Azure Container Registryの抄訳版です。最新の情報は原...
Microsoft Vulnerability Severity Classification for Online Services Publication
The Microsoft Security Response Center MSRC is always looking for ways to provide clarity and transparency around how we assess the impact of vulnerabilities reported in our products and services. We have published a new Microsoft Vulnerability Severity Classification for Online Services to provi...
Congratulations to the Top MSRC 2023 Q1 Security Researchers!
Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2023 Q1 Security Researcher Leaderboard are: Kai Lu...
Best practices regarding Azure Storage Keys, Azure Functions, and Azure Role Based Access
Summary Summary Azure provides developers and security operations staff a wide array of configurable security options to meet organizational needs. Throughout the software development lifecycle, it is important for customers to understand the shared responsibility model, as well as be familiar wi...
Microsoft Investigation - Threat actor consent phishing campaign abusing the verified publisher process
Summary Summary On December 15th, 2022, Microsoft became aware of a consent phishing campaign involving threat actors fraudulently impersonating legitimate companies when enrolling in the Microsoft Cloud Partner Program MCPP formerly known as Microsoft Partner Network MPN. The actor used fraudule...
Security Update Guide Improvement – Representing Hotpatch Updates
Today we are updating the way Microsoft Security Update Guide SUG represents the Windows Hotpatch feature to make it easier for users to identify the hotpatch and security updates. Hotpatching was introduced a year ago as a new way to install updates on supported Windows Server Azure Edition...
マイクロソフト 機械学習 メンバーシップ推論コンペティション (MICO) の発表
本ブログは、Announcing the Microsoft Machine Learning Membership Inference Competition MICOの抄訳版です。最新の情報は原文を参照してく...
Announcing the Microsoft Machine Learning Membership Inference Competition (MICO)
We’re excited to announce the launch of a new competition focusing on the security and privacy of machine learning ML systems. Machine learning has already become a key enabler in many products and services, and this trend is likely to continue. It is therefore critical to understand the security...
On-Premises Servers Products are Here! Introducing the Applications and On-Premises Servers Bug Bounty Program
Microsoft is excited to announce the addition of Exchange on-premises, SharePoint on-premises, and Skype for Business on-premises to the Applications and On-Premises Servers Bounty Program. Through this expanded program, we encourage researchers to discover and report high-impact security...
Expanding the Microsoft Researcher Recognition Program
The Microsoft Researcher Recognition Program offers public thanks and recognition to security researchers who help protect our customers through discovering and sharing security vulnerabilities under Coordinated Vulnerability Disclosure. Today, we are expanding the program to recognize more...
New High Impact Scenarios and Awards for the Azure Bounty Program
Microsoft is excited to announce new Azure Bounty Program awards up to $60,000 to encourage and reward vulnerability research focused on the highest potential impact to customer security. These increased awards are a part of our ongoing investment in partnership with the security research...
Microsoft ファミリーセーフティで家族の安全を見守ろう
～家庭で利用する PC・タブレットの設定ガイド～ ご家庭で PC やタブレットの安全な使い方を話し合いながら設...
Congratulations to the MSRC’s 2020 Most Valuable Security Researchers
Today we announce our Most Valuable Security Researchers for 2020! The MSRC Researcher Recognition program is an integral aspect of recognizing the ongoing partnerships with our community of talented security researchers who report through Coordinated Vulnerability Disclosure CVD. These...
Top MSRC 2020 Q2 Security Researchers Announced – Congratulations!
We are excited to announce the top contributing researchers for the 2020 Second Quarter Q2! Congratulations to all the researchers who continue to rock the leaderboard, and a big thank you to everyone for your contribution to securing our customers and the ecosystem. The top three researchers of...
2018 年 11 月のセキュリティ更新プログラム (月例)
2019/2/14 更新: お知らせ Microsoft Dynamics 365 の脆弱性 CVE-2018-8654 の詳細ページを公開しました。脆弱性に対応するための更新プログラム...
Congratulations to the Top MSRC 2024 Q2 Security Researchers!
Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2024 Q2 Security Researcher Leaderboard are Yuki Chen,...
Reflecting on 20 years of Patch Tuesday
This year is a landmark moment for Microsoft as we observe the 20th anniversary of Patch Tuesday updates, an initiative that has become a cornerstone of the IT world’s approach to cybersecurity. Originating from the Trustworthy Computing memo by Bill Gates in 2002, our unwavering commitment to...
First steps in CHERIoT Security Research
At Microsoft, we invest a lot of time researching and investigating possibilities in our journey to memory safety. Because the massive majority of existing codebases are written in unsafe programming languages, the task of protecting legacy code is very important. Hardware solutions are an...
Disclosure of Vulnerability in Azure Automation Managed Identity Tokens
On December 10, 2021, Microsoft mitigated a vulnerability in the Azure Automation service. Azure Automation accounts that used Managed Identities tokens for authorization and an Azure Sandbox for job runtime and execution were exposed. Microsoft has not detected evidence of misuse of tokens...
Researcher Spotlight: Dr. Nestori Syynimaa’s Constant Mission Protecting Identities
"When you find the things I find, they really matter. They affect everybody’s security.” Currently streaming: The Expanse and Lost in Space on Netflix Currently listening to: Amorphis, Architects, and Killswitch Engage Currently running: 130 kilometers or 80 miles a month Currently playing:...
Inside the MSRC – Anatomy of a SSIRP incident
This is the second in a series of blog posts that shares how the MSRC responds to elevated threats to customers through the Software and Services Incident Response Plan SSIRP. In our last blog post, we looked at the history of the Microsoft Security Response Center and SSIRP, and how Microsoft...
Congratulations to the Top MSRC 2024 Q3 Security Researchers!
Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2024 Q3 Security Researcher Leaderboard are wkai,...
Congratulations to the Top MSRC 2024 Q1 Security Researchers!
Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2024 Q1 Security Researcher Leaderboard are Yuki Chen,...
Microsoft Mitigates Three Vulnerabilities in Azure HDInsight
Summary Summary Microsoft recently remediated one Denial of Service and two Escalation of Privilege vulnerabilities affecting third party components of Azure HDInsight. Access to the target cluster as an authenticated user was a prerequisite for exploitation in all three cases. A successful...
Introducing the Microsoft Defender Bounty Program
We are excited to announce the new Microsoft Defender Bounty Program with awards of up to $20,000 USD. The Microsoft Defender brand encompasses a variety of products and services designed to enhance the security of the Microsoft customer experience. The Microsoft Defender Bounty Program invites...
Microsoft Response to Layer 7 Distributed Denial of Service (DDoS) Attacks
Summary Summary Beginning in early June 2023, Microsoft identified surges in traffic against some services that temporarily impacted availability. Microsoft promptly opened an investigation and subsequently began tracking ongoing DDoS activity by the threat actor that Microsoft tracks as...
Azure Storage Keys、Azure Functions、Azure Role Based Access に関するベスト プラクティス
本ブログは、Best practices regarding Azure Storage Keys, Azure Functions, and Azure Role Based Access の抄訳版です。最新の情報は原文を参照してください。 概要 概...
2023 年 4 月のセキュリティ更新プログラム (月例)
2023 年 4 月 11 日 米国時間 、マイクロソフトは、マイクロソフト製品に影響する脆弱性を修正するために、セキ...
Azure Kubernetes Service (AKS) Threat Hunting
As more businesses shift away from running workloads on dedicated virtual machines to running them inside containers using workload orchestrators like Kubernetes, adversaries have become more interested in them as targets. Moreover, the benefits Kubernetes provides for managing workloads are also...
Vulnerability Fixed in Azure Synapse Spark
Summary: Microsoft takes a proactive approach to continually probe our defenses, hunt for vulnerabilities, and seek new, innovative ways to protect our customers. Security researchers are an important part of this effort, and our collaborative partnership is critical in a world where cybersecurit...
Security Update Guide Notification System News: Create your profile now
Sharing information through the Security Update Guide SUG is an important part of our ongoing effort to help customers manage security risks and keep systems protected. In January 2022 we introduced Phase One of a new way for customers to receive email notifications about new Microsoft product...
Congratulations to the MSRC 2022 Most Valuable Researchers!
The Microsoft Researcher Recognition Program offers public thanks and recognition to security researchers who help protect our customers through discovering and sharing security vulnerabilities under Coordinated Vulnerability Disclosure. Today, we are excited to recognize this year’s top 100 Most...
Anatomy of a Cloud-Service Security Update
Our security teams around the world focus on identifying and mitigating security issues as soon as possible while minimizing customer disruption. One of the challenges of a traditional security update is ensuring customers apply the protections promptly. We recently discussed the work that goes...
2022 年 2 月のセキュリティ更新プログラム (月例)
2022 年 2 月 8 日（米国時間）、マイクロソフトは、マイクロソフト製品に影響する脆弱性を修正するために、セキ...
Microsoft Bug Bounty Programs Year in Review: $13.7M in Rewards
Security researchers are a vital component of the cybersecurity ecosystem that safeguards every facet of digital life and commerce. The researchers who devote time to uncovering and reporting security issues before adversaries can exploit them have earned our collective respect and gratitude. The...
Windows 堅牢化のためのセキュリティ構成フレームワーク (Security Configuration Framework: SecCon)
マイクロソフトによく寄せられる質問のひとつに、「マイクロソフトが推奨するセキュリティ構成や各設定項目...
Microsoft Security Servicing Criteria for Windows
One of our goals in the Microsoft Security Response Center MSRC is to be more transparent with security researchers and our customers on the criteria we use for determining when we intend to address a reported vulnerability through a security update. Our belief is that improving transparency on...
Hyper-V Debugging Symbols Are Publicly Available
The security of Microsoft’s cloud services is a top priority for us. One of the technologies that is central to cloud security is Microsoft Hyper-V which we use to isolate tenants from one another in the cloud. Given the importance of this technology, Microsoft has made and continues to make...
SHA-1 ウェブサーバー証明書は警告！ウェブサイト管理者は影響の最終確認を
こんにちは、村木ゆりかです。 以前よりマイクロソフト セキュリティ アドバイザリ 2880823、そして、このブログでもご案内しているとおり、証明書に利用されているハッシュ アルゴリズム SHA-1 の安全性の低下に伴い、利用廃止が進められています。 マイクロソフトでは、2017 年 2 月 14 日 米国時間 2017 年中旬 2017 日 5 月 9 日 米国時間 より、SHA-1 の TLS サーバー証明書を利用するウェブサイトを、Microsoft Edge および Internet Explorer 11...
Rising star: Meet Dylan, MSRC’s youngest security researcher
At just 13 years old, Dylan became the youngest security researcher to collaborate with the Microsoft Security Response Center MSRC. His journey into cybersecurity is inspiring—rooted in curiosity, resilience, and a deep desire to make a difference. Early beginnings: From scratch to security...
Microsoft Bounty Program Year in Review: $16.6M in Rewards
We are excited to announce that this year the Microsoft Bounty Program has awarded $16.6M in bounty awards to 343 security researchers from 55 countries, securing Microsoft customers in partnership with the Microsoft Security Response Center MSRC. Each year we identify over a thousand potential...
Introducing the Microsoft AI Bug Bounty Program featuring the AI-powered Bing experience
Today at BlueHat we announced the new Microsoft AI bug bounty program with awards up to $15,000. This new bounty program features the AI-powered Bing experience as the first in scope product. The following products and integrations are eligible for bounty awards: AI-powered Bing experiences on...
Microsoft Response to Distributed Denial of Service (DDoS) Attacks against HTTP/2
Summary Beginning in September 2023, Microsoft was notified by industry partners about a newly identified Distributed Denial-of-Service DDoS attack technique being used in the wild targeting HTTP/2 protocol. This vulnerability CVE-2023-44487 impacts any internet exposed HTTP/2 endpoints. As an...
What to expect when reporting vulnerabilities to Microsoft
At the Microsoft Security Response Center MSRC, our mission is to protect our customers, communities, and Microsoft from current and emerging threats to security and privacy. One way we achieve this is by working with security researchers to identify and fix security vulnerabilities in our servic...