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:...

“BadAlloc” – Memory allocation vulnerabilities could affect wide range of IoT and OT devices in industrial, medical, and enterprise networks

Microsoft’s Section 52, the Azure Defender for IoT security research group, recently uncovered a series of critical memory allocation vulnerabilities in IoT and OT devices that adversaries could exploit to bypass security controls in order to execute malicious code or cause a system crash. These...

MSRC Security Researcher Recognition: 2021

Wondering how to get into the 2021 MSRC Most Valuable Security Researcher list and get recognized during the Black Hat USA this August? Read on to learn more about the different paths you can take to get into the top researcher tiers. The MSRC Most Valuable Security Researcher MVR and MSRC...

Building Faster AMD64 Memset Routines

Over the past several years, Microsoft has rolled out several changes that result in more memory being zeroed. These mitigations include: The InitAll mitigation which zeros most stack variables Switching most Microsoft kernel code over to the ExAllocatePool2/ExAllocatePool3 API’s which zero memor...

Concluding the Azure Sphere Security Research Challenge, Microsoft Awards $374,300 to Global Security Research Community

The Azure Sphere Security Research Challenge brought together 70 researchers from 21 countries to help secure Azure Sphere customers and expand Microsoft’s partnerships with the global IoT security research community. During the three-month Azure Sphere Security Research Challenge, researchers...

Microsoft Joins Open Source Security Foundation

Microsoft has invested in the security of open source software for many years and today I’m excited to share that Microsoft is joining industry partners to create the Open Source Security Foundation OpenSSF, a new cross-industry collaboration hosted at the Linux Foundation. The OpenSSF brings...

2020 年 2 月のセキュリティ更新プログラム (月例)

2020 年 2 月 12 日 日本時間、マイクロソフトは以下のソフトウェアのセキュリティ更新プログラムを公開しまし...

December 2019 security updates are available

We have released the December security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder,...

Introducing the ElectionGuard Bounty program

Today we are launching the ElectionGuard Bounty program. In May 2019, we announced the release of ElectionGuard, a free open-source SDK to make voting more secure, transparent, and accessible. ElectionGuard enables end-to-end verification of elections, open results to third-party organizations fo...

Meet the BlueHat Content Advisory Board

We couldn’t do BlueHat without the Content Advisory Board, the brain trust reviewing submissions to the CFP. Representing both Microsoft and other parts of security community, the CAB applies their industry and speaker experience to create the BlueHat agenda that’s the right mix of topics and...

2020 年 IE, Edge で TLS 1.0, 1.1 での接続無効化。確認を！

こんにちは、垣内ゆりかです。 マイクロソフトでは、Transport Layer Security TLS 1.0, 1.1 の利用を廃止し、より安全...

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...

Microsoft’s Top 100 Security Researchers – Black Hat 2018 Edition

This morning we are excited to unveil the security researcher leaderboard at the Black Hat Security Conference. This list recognizes the top security researchers who have contributed research to the Microsoft products and services. If you are curious on how we build the list, check out our blog...

The Making of the Top 100 Researcher List

At Black Hat USA each year, we unveil the Top 100 Security Researcher list to reflect the amazing engagement we get from the community. During this period, we had several thousand researchers engage with the Microsoft Security Response Center MSRC. We appreciate all the partnership and coordinati...

BlueHat v18 Announced & Call for Papers Opens

We are back! Microsoft is excited to announce the next installment of the BlueHat Security Conference – BlueHat v18. We will be holding the event at Microsoft’s headquarter campus September 25-27, 2018. This year we are adding the option for workshops and networking on the first day prior to the...

Triaging a DLL planting vulnerability

DLL planting aka binary planting/hijacking/preloading resurface every now and then, it is not always clear on how Microsoft will respond to the report. This blog post will try to clarify the parameters considered while triaging DLL planting issues. It is well known that when an application loads ...

セキュリティ更新プログラムの情報を API で取得する方法を紹介するビデオを YouTube で公開しています

セキュリティ更新プログラムの情報は「セキュリティ更新プログラム ガイド」ダッシュボードから入手できるこ...

Extending Microsoft Edge Bounty Program

Over the past 10 months, we’ve paid out more than $200,000 USD in bounties to researchers reporting vulnerabilities through the Microsoft Edge Bounty Program. Partnering with the research community has helped improve Microsoft Edge security, and to continue this collaboration, today we're extendi...

April 2017 security update release

Today we released security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found on the Security Update Guide. MSRC team...

Announcing the new Bug Bounty Program for Office Insider Builds on Windows

We’ve engineered Office to be secure by design and continually invest in enhancing its security capabilities. In the spirit of maintaining a high security bar in Office, we’re launching the Bug Bounty Program for Office Insider Builds on Windows. The Office Bug Bounty Program complements our...

EMET 5.52 update is now available

EMET 5.52 is the latest version of the Enhanced Mitigation Experience Toolkit EMET and is now available for download. EMET 5.52 is a minor update from EMET 5.51 to address the following: An issue with the EAF mitigation that causes some applications to hang on Windows 7 SP1. A fix to the MSI...

Announcing a Microsoft .NET Core and ASP.NET Core Bug Bounty

It’s our pleasure to announce another exciting expansion of the Microsoft Bounty Programs. Today, we will be adding .NET Core and ASP.NET Core to our suite of ongoing bounty programs. We are offering a bounty on the Windows and Linux versions of .NET Core and ASP.NET Core starting on September 1,...

December 2015 Security Update Release Summary

Today we released security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to apply security updates as soon as they are released. More information about this month’s security updates and advisories can be found in the Security...

Advance Notification Service for the September 2014 Security Bulletin Release

Today, we provide advance notification for the release of four Security Bulletins. One of these updates is rated Critical and three are rated as Important in severity. These updates are for Microsoft Windows, Internet Explorer, .NET Framework and Lync. As a reminder, we are now using a new format...

Introduction: Chris Betz, new head of MSRC

By way of introduction, I am Chris Betz, the leader of the Microsoft Security Response Center MSRC. I’m stepping in to fill the shoes of Mike Reavey, who has moved on to become the General Manager of Secure Operations, still within Trustworthy Computing. Since joining the MSRC, I’ve spent time...

Toward greater transparency: Adopting the CWE standard for Microsoft CVEs

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 determining the root cause of security vulnerabilities in Microsoft products and services. W...

Updated Researcher Portal Submission Form: Discover the New Fields in the Submission Form

Summary: We are excited to announce the release of the updated Researcher Portal submission form. These new fields allow Security Researchers to provide additional context for the reported security issue, providing product teams with more data for analysis, gain insights and identify trends acros...

2023 年 6 月のセキュリティ更新プログラム (月例)

2023 年 6 月 13 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...

Announcing The BlueHat Podcast: Listen and Subscribe Now!

Available today on all major podcast platforms is The BlueHat Podcast, a new series of security research focused conversations, continuing the themes from the BlueHat 2023 conference session recordings available to watch here. Since 2005, BlueHat has been where the security research community, an...

Best practices regarding Azure Storage Keys, Azure Functions, and Azure Role Based Access

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 with vario...

New MSRC Blog Site

We are excited to announce the release of the new Microsoft Security Response Center MSRC blog site. Please visit msrc.microsoft.com/blog/ starting February 9th, 2023, for all past and future MSRC blog content. In addition to the new URL, we have refreshed the site with a new look and improved si...

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...

セキュリティ更新プログラム リリース スケジュール (2023 年)

2023 年のセキュリティ更新プログラムの公開予定日は下記のとおりです。更新プログラムの評価、テスト、適用の...

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...

All Hands-on Deck: A Whole-of-Society Approach for Cybersecurity

The morning of June 9th, I was driving over the Golden Gate Bridge into San Francisco with my family. While crossing the bridge my children shared some facts about this modern engineering marvel. Each day, approx. 100,000 vehicles travel over the bridge deck, which weighs a staggering 150,000 ton...

New Research Paper: Pre-hijacking Attacks on Web User Accounts

In 2020, MSRC awarded two Identity Project Research Grants to support external researchers working to further strengthen the security of identity protocols and systems. Today we are pleased to release the results of the first of these projects. This research, led by independent security researche...

2022 年 5 月のセキュリティ更新プログラム (月例)

2022 年 5 月 10 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...

Congratulations and New Swag Awards for the Top MSRC 2022 Q1 Security Researchers!

Today, we are excited to recognize this quarter’s Microsoft Researcher Recognition Program leaderboard and share new swag awards and improvements to the leaderboard. Congratulations and thank you to everyone for your hard work and continued partnership to secure customers. The top three researche...

Increasing Representation of Women in Security Research

Microsoft is committed to partnering with and supporting women in security research. Whether it’s growing women early in their career, or connecting people with mentors, we want to be a part of the journey. Throughout Womens History Month we intentionally sought opportunities to engage with women...

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 Identitiestokens for authorization and an Azure Sandbox for job runtime and execution were exposed. Microsoft has not detected evidence of misuse of tokens...

ウクライナにおけるサイバー脅威アクティビティ: 分析とリソース

本ブログは、Cyber threat activity in Ukraine: analysis and resources – Microsoft Security Response Center の抄訳版です。最新の情報は原文を参照してください。 2022 年...

Coming Soon: New Security Update Guide Notification System

Sharing information through the Security Update Guide is an important part of our ongoing effort to help customers manage security risks and keep systems protected. Based on your feedback we have been working to make signing up for and receiving Security Update Guide notifications easier. We are...

BlueHat is Back!

After a short hiatus, BlueHat is coming back with a vengeance! And we’ve got big plans for the entire researcher community. But first, I must apologize. It’s been a while since you have heard from us. We didn’t have BlueHat 2020 or 2021, and we know that was disappointing. It was partly due to th...

Power Platform is Here! Introducing the Dynamics 365 and Power Platform Bug Bounty Program

Microsoft is excited to announce the addition of Power Platform to the newly rebranded Dynamics 365 and Power Platform Bounty Program. Through this expanded program, we encourage researchers to discover and report high impact security vulnerabilities they may find in the new Power Platform scope ...

Control Flow Guard for Clang/LLVM and Rust

As part of our ongoing efforts towards safer systems programming, we’re pleased to announce that Windows Control Flow Guard CFG support is now available in the Clang C/C++ compiler and Rust. What is Control Flow Guard? What is Control Flow Guard? CFG is a platform security technology designed to...

Announcing MSRC 2019 Q4 Security Researcher Leaderboard

Following the first Security Researcher Quarterly Leaderboard we published in October 2019, we are excited to announce the MSRC Q4 2019 Security Researcher Leaderboard, which shows the top contributing researchers for the last quarter. In each quarterly leaderboard, we recognize the security...

October 2019 security updates are available!

We have released the October security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder,...

Acquiring a VHD to Investigate

In a previous post we described some of the differences between on-premises/physical forensics and cyber investigations and those performed in the cloud, and how this can make cloud forensics challenging. That blog post described a method of creating and maintaining a VM image which can be...

Microsoft Announces Top Contributing Partners in the Microsoft Active Protections Program (MAPP)

Today we announce the top organizational candidates for Vulnerability Top Contributors, Threat Indicator Top Submitters, and Zero-Day Top Reporting for the period of July 1, 2018 – June 30, 2019. The Microsoft Active Protections Program provides security and protection to customers through...

Announcing the Microsoft Dynamics 365 Bounty program

One of Microsoft’s many security investments to protect customers is in the partnerships we build with the external security research community. We are excited to announce the launch of theDynamics 365 Bounty program and welcome researchers to seek out and disclose any high impact vulnerabilities...