New Nobelium activity

The Microsoft Threat Intelligence Center is tracking new activity from the NOBELIUM threat actor. Our investigation into the methods and tactics being used continues, but we have seen password spray and brute-force attacks and want to share some details to help our customers and communities prote...

Introducing Bounty Awards for Teams Desktop Client Security Research

Partnering with the security research community is an important part of Microsoft’s holistic approach to defending against security threats. As much of the world has shifted to working from home in the last year, Microsoft Teams has enabled people to stay connected, organized, and collaborate...

2021 年 3 月のセキュリティ更新プログラム (月例)

2021 年 3 月 10 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...

Security Update Guide Supports CVEs Assigned by Industry Partners

Hi Folks, This month we are introducing a new data element for each CVE in the Security Update Guide, called Assigning CNA. First let me back up a bit and give some information about the CVE program. The purpose of a CVE is to uniquely identify a cybersecurity vulnerability. The CVE program was...

Nobelium Resource Center - updated March 4, 2021

UPDATE: Microsoft continues to work with partners and customers to expand our knowledge of the threat actor behind the nation-state cyberattacks that compromised the supply chain of SolarWinds and impacted multiple other organizations. Microsoft previously used ‘Solorigate’ as the primary...

Security Analysis of CHERI ISA

Is it possible to get to a state where memory safety issues would be deterministically mitigated? Our quest to mitigate memory corruption vulnerabilities led us to examine CHERI Capability Hardware Enhanced RISC Instructions, which provides memory protection features against many exploited...

What to Expect When Reporting Vulnerabilities to Microsoft

At the Microsoft Security Response Center’s MSRC, our primary mission is to help protect our customers. One of the ways we do this is by working with security researchers to discover security vulnerabilities in our services and products, and then making sure those that pose a threat to customers...

New and improved Security Update Guide!

We’re excited to announce a significant update to the Security Update Guide, our one-stop site for information about all security updates provided by Microsoft. This new version will provide a more intuitive user experience to help protect our customers regardless of what Microsoft products or...

Updates to the Windows Insider Preview Bounty Program

Partnering with the research community is an important part of Microsoft’s holistic approach to defending against security threats. Bounty programs are one part of this partnership, designed to encourage and reward vulnerability research focused on the highest impact to customer security. The...

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...

Solving Uninitialized Kernel Pool Memory on Windows

This blog post outlines the work that Microsoft is doing to eliminate uninitialized kernel pool memory vulnerabilities from Windows and why we’re on this path. For a background on why uninitialized memory matters and what options have been used in the past to tackle this issue, please see our...

BlueHat Seattle videos are online!

Were you unable to attend BlueHat Seattle, or wanted to see a session again? We have good news. If you have been waiting for the videos from BlueHat Seattle last month, the wait is over. All videos which the presenter authorized to be recorded are now online and available to anyone...

Using Rust in Windows

This Saturday 9th of November, there will be a keynote from Microsoft engineers Ryan Levick and Sebastian Fernandez at RustFest Barcelona. They will be talking about why Microsoft is exploring Rust adoption, some of the challenges we’ve faced in this process, and the future of Rust adoption in...

2019 年 9 月のセキュリティ更新プログラム (月例)

2019 年 9 月 11 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...

September 2019 Security Updates

We have released the September 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,...

Recognizing Security Researchers in 2019

Who’s going to be on the Most Valuable Security Researcher list at Black Hat USA 2019? We’re not announcing the names—yet—but this is how we’ll determine who’s there. How do we define the Most Valuable Security Researchers? The list at Black Hat will be the top tier of researchers based on not ju...

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...

Microsoft Launches a New Recognition Program for MAPP Partners

There are many dedicated people and organizations who contribute to the protection and security of our common customers. For years, Microsoft has recognized security researchers for helping protect the ecosystem. Now, we’re announcing the launch of a new program to better recognize and thank...

Microsoft Bounty Program Updates: Faster bounty review, faster payments, and higher rewards

In 2018 The Microsoft Bounty Program awarded over $2,000,000 to encourage and reward external security research in key technologies to protect our customers. Building on that success, we are excited to announce a number of improvements in our bounty programs to better serve the security research...

Join Microsoft Security Response at the Product Security Operations forum at LocoMocoSec!

The MSRC is more than managing vulnerability reports, publishing Microsoft security updates, and defending the cloud. The MSRC is passionate about helping everyone improve internal engineering practices and supporting the defender community, and are excited to partner with Blackberry to host a...

Call for Papers | Microsoft BlueHat Shanghai 2019

The Microsoft Security Response Center MSRC recently announced our first BlueHat security conference in Shanghai which will take place on May 29-30, 2019. After 15 years of BlueHat events in Redmond, Washington and Israel, we are thrilled to expand to a new location. We work with many talented...

Practical advice for earning higher Microsoft bounty awards

This year at the Nullcon International Security Conference I shared practical advice for how security researchers can maximize the impact of their security vulnerability submissions and earn higher bounty awards under the Microsoft Bounty Program. For those who couldn’t be there, I had two core...

セキュリティ インテリジェンス レポート (SIR) 第 24 版公開

2019 年 2 月 28 日 米国時間、マイクロソフトは「マイクロソフト セキュリティ インテリジェンス レポート SIR 第 24...

Announcing the Microsoft Azure DevOps Bounty program

The Microsoft Security Response Center MSRC is pleased to announce the launch of the Azure DevOps Bounty program, a program dedicated to providing rock-solid security for our DevOps customers. Starting January 17, 2019, we’re excited to offer rewards up to US$20,000 for eligible vulnerabilities i...

December 2018 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...

更新プログラムが正しくインストールされたかを確認する方法 - Windows 8.1 の場合

本ブログ記事は初級レベルから中級レベルのコンピューター ユーザーを対象にしています。 Windows 10 をお使いのお客...

[セキュリティ基本対策 5 か条] 第 1 条 最新の状態で利用する

注: この内容は一般の方を対象とした記述にしています。 今日はセキュリティ基本対策 5 か条の第 1 条「最新の...

August 2018 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...

EMET サポート終了 – Windows Defender Exploitation Guard へ移行を

こんにちは、垣内ゆりかです。 2009 年にリリースされて以来、最先端の攻撃緩和を追加する無償のツールとして、...

2018 年 6 月のセキュリティ更新プログラム (月例)

2018/6/21 更新: 2 件のセキュリティ アドバイザリ ADV180016 および ADV180010 の情報を追加しました。 -------------- 2018 年 6 月 13 日 日本時間、マ...

Recognizing Q3 Top 5 Bounty Hunters

Throughout the year, security researchers submit some amazing work to us under the Microsoft Bug Bounty program. Starting this quarter, we want to give a shout out to and acknowledge the hard work and dedication of the following individuals and companies who have contributed to securing Microsoft...

未更新のシステム脆弱性を狙う WannaCrypt ランサムウェア

本記事は、Windows Security のブログ “WannaCrypt ransomware worm targets out-of-date systems” 2017 年 5 月 12 日 米国時間...

Windows Defender Application Guard で Microsoft Edge を最もセキュアなブラウザーに

本記事は、Windows Security のブログ “Making Microsoft Edge the most secure browser with Windows Defender Application Guard” 2017 年 10 月 23 日 米国時間...

Microsoft Office に関する報奨金プログラムの延長

本記事は、Microsoft Security Response Center のブログ “Extending the Microsoft Office Bounty Program” 2017 年 9 月 15 日 米...

EMET は Windows 10 Defender Exploitation Guard へ統合されます

こんにちは、垣内ゆりかです。 本ブログでも、たびたび取り上げてきました 脆弱性緩和ツール Enhanced Mitigation Experience Toolkit EMET 。 EMET は...

September 2017 security update release

Today, we released security updates to provide additional protections against malicious attackers. By default, Windows 10 receives these updates automatically, and for customers running previous versions, we recommend they turn on automatic updates as a best practice. More information about this...

2017 年 9 月のセキュリティ更新プログラム (月例)

2017 年 9 月 13 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...

2017 年 8 月のセキュリティ更新プログラム (月例)

2017 年 8 月 9 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...

August 2017 security update release

Today, we released security updates to provide additional protections against malicious attackers. By default, Windows 10 receives these updates automatically, and for customers running previous versions, we recommend they turn on automatic updates as a best practice. More information about this...

The MSRC 2017 list of “Top 100” security researchers

Security researchers play an essential role in Microsoft’s security strategy and are key to community-based defense. To show our appreciation for their hard work and partnership, each year at BlackHat North America, the Microsoft Security Response Center highlights contributions of these...

Eternal Synergy Exploit Analysis

Introduction Recently we announced a series of blog posts dissecting the exploits released by the ShadowBrokers in April 2017; specifically some of the less explored exploits. This week we are going to take a look at Eternal Synergy, an SMBv1 authenticated exploit. This one is particularly...

July 2017 security update release

Today, we released security updates to provide additional protections against malicious attackers. By default, Windows 10 receives these updates automatically, and for customers running previous versions, we recommend they turn on automatic updates as a best practice. More information about this...

Tales from the MSRC: from pixels to POC

Is this thing still on? It’s been a while since we’ve posted to this blog and we think it’s time to start posting deep technical content about Security Research & Defense SRD again. For readers who are new or may have forgotten, this blog is the home of the MSRC Vulnerabilities & Mitigations...

Customer Guidance for WannaCrypt attacks

Microsoft solution available to protect additional products Today many of our customers around the world and the critical systems they depend on were victims of malicious “WannaCrypt” software. Seeing businesses and individuals affected by cyberattacks, such as the ones reported today, was painfu...

Bountycraft at Nullcon 2017

Security is a critical component of our products at Microsoft. A strong emphasis on security is a persistent factor throughout our entire development process. Microsoft is committed to designing and developing secure software. Testing is performed both internally and by working closely with the...

Protecting customers and evaluating risk

Today, Microsoft triaged a large release of exploits made publicly available by Shadow Brokers. Understandingly, customers have expressed concerns around the risk this disclosure potentially creates. Our engineers have investigated the disclosed exploits, and most of the exploits are already...

2017 年 4 月のセキュリティ更新プログラム (月例)

2017 年 4 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...

2017 年 3 月のセキュリティ情報 (月例) - MS17-006 ～ MS17-023

2017 年 3 月 15 日 日本時間、マイクロソフトは計 18 件 緊急 9 件、重要 9 件 の新規セキュリティ情報を公開し...

Office 365 security researchers: Double your bounties March-May 2017

Microsoft strives to protect our customers and we’re constantly improving our security posture to meet their needs. We realize the desire of researchers and customers to security test our services to ensure they can trust us and our solutions. We also believe that if a researcher informs us of a...

January 2017 security update release

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...