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Driving a Collectively Stronger Security Community with Microsoft Interflow
Today, Microsoft is pleased to announce the private preview of Microsoft Interflow, a security and threat information exchange platform for analysts and researchers working in cybersecurity. Interflow uses industry specifications to create an automated, machine-readable feed of threat and securit...
The April 2014 Security Updates
T. S. Elliot once said, “What we call the beginning is often the end. And to make an end is to make a beginning. The end is where we start from.” So as we put one season to bed, let’s start another by looking at the April security updates. Today, we release four bulletins to address 11 CVEs in...
A Look Into the Future and the January 2014 Bulletin Release
In January, there are those who like to make predictions about the upcoming year. I am not one of those people. Instead, I like to quote Niels Bohr who said, “Prediction is very difficult, especially if it’s about the future.” However, I can say without a doubt that change is afoot in 2014...
MS13-098: Update to enhance the security of Authenticode
Today we released MS13-098, a security update that strengthens the Authenticode code-signing technology against attempts to modify a signed binary without invalidating the signature. This update addresses a specific instance of malicious binary modification that could allow a modified binary to...
Microsoft Releases Security Advisory 2914486
Today we released Security Advisory 2914486 regarding a local elevation of privilege EoP issue that affects customers using Microsoft Windows XP and Server 2003. Windows Vista and later are not affected by this local EoP issue. A member of the Microsoft Active Protections Program MAPP found this...
Software defense: safe unlinking and reference count hardening
Object lifetime management vulnerabilities represent a very common class of memory safety vulnerability. These vulnerabilities come in many shapes and sizes, and are typically quite difficult to mitigate generically. Vulnerabilities of this type result commonly from incorrect accounting with...
October 2013 Security Bulletin Webcast, Q&A, and Slide Deck
Today we’re publishing the October 2013 Security Bulletin Webcast Questions & Answers page. We fielded 11 questions during the webcast, with specific bulletin questions focusing primarily on the SharePoint MS13-084 and Kernel-Mode Drivers MS13-081 bulletins. There was one additional question that...
Preparing for Live Pwnage: Mitigation Bypass Bounty Machine Specs for Black Hat
With about one week to go before we all gather at Black Hat in Las Vegas, we’re getting inquiries about precisely how the promised Live Mitigation Bypass Bounty judging at Black Hat will work. For most of the world, it works best when you get a good spot at the Microsoft booth 301 around noon eac...
Assessing risk for the June 2013 security updates
Today we released five security bulletins addressing 23 CVE’s. One bulletin has a maximum severity rating of Critical, and four have a maximum severity rating of Important. We hope that the table below helps you prioritize the deployment of the updates appropriately for your environment. Bulletin...
Improved cryptography infrastructure and the June 2013 bulletins
It was just over one year ago, May 28, 2012, to be exact, that I transitioned from running active MSRC cases and writing bulletins to my current role managing software security incidents. A lot has changed in that year- and I’ve dealt with some interesting issues during my tenure - but our goal o...
May 2013 Security Bulletin Webcast, Q&A, and Slide Deck
For those who couldn’t attend the live webcast, today we’re publishing the May 2013 Security Bulletin Webcast Questions & Answers page. We fielded 13 questions on various topics during the webcast, with specific bulletin questions focusing primarily on Internet Explorer MS13-037 and MS13-038 and...
Congratulations to the top MSRC 2026 Q1 security researchers!
Congratulations to all the researchers recognized in this quarter’sMicrosoft Researcher Recognition Programleaderboard! Thank you to everyone for your hard work and continued partnership to secure customers...
How Brad Schlintz built a life of freedom and impact through security research
At Microsoft Security Response Center MSRC, we celebrate the diverse paths that bring researchers to our community. Brad Schlintz’s story is one of curiosity, resilience, and a relentless drive to learn, spanning rural beginnings, career pivots, and a life shaped by both technology and travel. In...
Toward greater transparency: Introducing machine-readable Vulnerability Exploitability Xchange (VEX) for Azure Linux and beyond
Microsoft is now publishing standard attestations about third-party CVEs through the Vulnerability Exploitability eXchange VEX standard including vulnerabilities in embedded open-source software in Microsoft products and services and starting with the Azure Linux Distribution formerly CBL-Mariner...
Congratulations to the Top MSRC 2022 Q4 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 2022 Q4 Security Researcher Leaderboard are:...
Reflecting on Cybersecurity Awareness Month: At its Core, Cybersecurity is all about People
As Cybersecurity Awareness Month 2022 comes to a close, I’m grateful for the impact it has had in bringing cybersecurity to the forefront since it began in 2004. Though the month may be over, our work in cybersecurity is never done. Often, we think about cybersecurity as a complex technology...
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...
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 :...
Congratulating Our Top MSRC 2021 Q1 Security Researchers!
We’re excited to announce the top contributing researchers for the 2021 First Quarter Q1! Congratulations to all the researchers recognized in this quarter’s leaderboard and thank you to everyone who continues to help secure our customers and the...
Congratulating Our Top MSRC 2021 Q1 Security Researchers!
We’re excited to announce the top contributing researchers for the 2021 First Quarter Q1! Congratulations to all the researchers recognized in this quarter’s leaderboard and thank you to everyone who continues to help secure our customers and the...
オンプレミス Exchange 緩和ツール (ワンクリックの緩和ツール)
「One-Click Microsoft Exchange On-Premises Mitigation Tool – March 2021」の日本語抄訳です。 最近のオンプレミスの Exchange Server を狙った攻撃に...
One-Click Microsoft Exchange On-Premises Mitigation Tool - March 2021
We have been actively working with customers through our customer support teams, third-party hosters, and partner network to help them secure their environments and respond to associated threats from the recent Exchange Server on-premises attacks. Based on these engagements we realized that there...
サイバーセキュリティ月間 2021
今年もサイバーセキュリティ月間 2 月 1 日～ 3 月 18 日 が始まりました。サイバーセキュリティ月間とは、内閣...
休暇中に被害に遭わないために ～お休み前のセキュリティ チェック～
日本では年末年始は多くの方が休暇になり、企業組織の業務はおやすみになります。しかしながら、サイバー犯...
2020 年 9 月のセキュリティ更新プログラム (月例)
2020 年 9 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情報を公開しました。 Microsoft...
Machine Learning Security Evasion Competition 2020 Invites Researchers to Defend and Attack
Machine learning ML is an increasingly valuable tool in cyber security as adversaries continually evolve their tactics and techniques to evade detection. As machine learning has advanced and sophisticated ML models have been developed to assist security professionals in protecting the cloud,...
2020 年 3 月のセキュリティ更新プログラム (月例)
2020 年 3 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...
Access Misconfiguration for Customer Support Database
Today, we concluded an investigation into a misconfiguration of an internal customer support database used for Microsoft support case analytics. While the investigation found no malicious use, and although most customers did not have personally identifiable information exposed, we want to be...
2020 年 1 月のセキュリティ更新プログラム (月例)
2020 年 1 月 15 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...
November 2019 security updates are available!
We have released the November 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,...
Time for day 2 of briefings at BlueHat Seattle!
We hope you enjoyed the first day of our BlueHat briefings and the Bytes of BlueHat reception in our glamping tent complete with toasted marshmallows. Yesterday, we learned a lot about how XboxOne hardware security has advanced the state of hardware security elsewhere, we heard some surprising...
Announcing 2019 MSRC Most Valuable Security Researchers
Earlier today we announced MSRC’s 2018-2019 Most Valuable Security Researchers at Black Hat. The following 75 researchers hail from all corners of the world and possess varied experience and skills, yet all of them have contributed to securing the Microsoft’s customers and the broader ecosystem...
日本セキュリティチーム ブログ移行のお知らせ
平素より、日本セキュリティチーム ブログをご愛読いただきありがとうございます。 日本セキュリティチーム ブ...
Inside the MSRC – Building your own security incident response process
This is the third and last in a series of posts that looks at how Microsoft responds to elevated threats to customers through the Microsoft Security Response Center’s MSRC Software and Services Incident Response Plan SSIRP. Our previous posts discussed how Microsoft protects customers against...
Local privilege escalation via the Windows I/O Manager: a variant finding collaboration
The Microsoft Security Response Center MSRC investigates all reports of security vulnerabilities affecting Microsoft products and services to help make our customers and the global online community more secure. We appreciate the excellent vulnerability research reported to us regularly from the...
March 2019 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...
December 2018 Security Update Release
Today, we released a security update for Internet Explorer after receiving a report from Google about a new vulnerability being used in targeted attacks. Customers who have Windows Update enabled and have applied the latest security updates, are protected automatically. We encourage customers to...
Inside MSRC: Sharing Our Story & Customer Tips
For the last 20 years, the Microsoft Security Response Center has been an integral part of Microsoft’s commitment to customer security. We are often called on to talk about the work we do and how customers can apply the lessons we have learned over that period to better their security posture...
Draft of Microsoft Security Servicing Commitments for Windows
Updated September 10, 2018 The Servicing Criteria for Windows has transitioned to an official document and can be found at the link below. Microsoft thanks the members of the research community who provided feedback on the draft copy. Microsoft Security Servicing Criteria for Windows...
May 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...
「Emotet」の大規模感染を阻止した人工知能のしくみ
本記事は、Microsoft Secure のブログ “How artificial intelligence stopped an Emotet outbreak” 2018 年 2 月 14 日 米国時間公開...
Windows システム上の Spectre および Meltdown に対する緩和策のパフォーマンスへの影響について
本記事は、Microsoft Secure ブログ “Understanding the performance impact of Spectre and Meltdown mitigations on Windows Systems”...
December 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...
October 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...
May 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...
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...
December 2016 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...
June 2016 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...
Microsoft Bounty Programs Announce Expansion - Bounty for Microsoft OneDrive
At Microsoft, we continue to add new properties to our security bug bounty programs to help keep our customer’s secure. Today, I’m pleased to announce the addition of Microsoft OneDrive to the Microsoft Online Services Bug Bounty Program. This addition further incentivizes security researchers to...
Enhanced Mitigation Experience Toolkit (EMET) version 5.5 is now available
The Enhanced Mitigation Experience Toolkit EMET benefits enterprises and all computer users by helping to protect against security threats and breaches that can disrupt businesses and daily lives. It does this by anticipating, diverting, terminating, blocking, or otherwise invalidating the most...