Security Response @msftsecresponse Twitter profile

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Security Response

@msftsecresponse

3 years

Microsoft has released updates to protect against CVE-2021-34527. Please see:

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@msftsecresponse

5 years

What if you could eliminate a common class of vulnerabilities by changing the language you used? MSRC is publishing a series on why Microsoft is looking at @rustlang for memory-safe development and why we think you should too. See the first post here:

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@msftsecresponse

3 years

MSRC has just published a blog post for Microsoft's response to CVE-2021-44228 Apache Log4j 2

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@msftsecresponse

3 years

We've published a new Print Spooler Security Advisory:

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@msftsecresponse

5 years

Microsoft is aware of a RCE vulnerability in the way that the SMBv3 protocol handles certain requests. If you wish to be notified when updates for this vulnerability are available, please follow the guidance in the advisory linked here:

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Security Response

@msftsecresponse

4 years

July 2020 Security Update includes a fix for a wormable RCE vulnerability in Windows DNS Server affecting all versions of Windows server running the DNS Server role. This should be patched quickly. For more information, see:

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@msftsecresponse

3 years

To mitigate against various NTLM relay attacks, disable NTLM where not needed (eg DCs) or implement the mitigation feature, Extended Protection for Authentication. Guidance at

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@msftsecresponse

3 years

MSRC has release CVE-2021-34481 today.

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Security Response

@msftsecresponse

3 years

The MSRC has updated CVE-2021-34527 with more information.

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Security Response

@msftsecresponse

5 years

MSRC has confirmed an active Linux worm leveraging critical Remote Code Execution (RCE) vulnerability CVE-2019-10149 in Linux Exim email servers. We advise Azure customers to patch or restrict network access to VMs running affected versions. More info:

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@msftsecresponse

4 years

Microsoft’s Bug Bounty Programs awarded $13.7M to over 300 security researchers in the last 12 months. Thank you for all your hard work to help secure millions of customers. #bugbounty , #CommunityBasedDefense

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@msftsecresponse

1 year

Microsoft has released CVE-2023-23397 to address the critical elevation of privilege (EoP) vulnerability affecting Microsoft Outlook for Windows. We strongly recommend all customers update Microsoft Outlook for Windows to remain secure. Learn more ⬇️

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Security Response

@msftsecresponse

3 years

Open call for SSRF enthusiasts! We’re excited to announce the launch of our three-month Azure SSRF Security Research Challenge with awards up to $60,000 USD! Ready, set, go! More information can be found on our blog:

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Security Response

@msftsecresponse

3 years

Microsoft Bug Bounty Programs awarded $13.6M to 341 security researchers in the last 12 months. Thank you to everyone for your continued work to help secure millions of customers.

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Security Response

@msftsecresponse

6 years

We've released an advisory to address the concerns around #BitLocker and the recently disclosed vulnerabilities in self-encrypting #SSDs . See to see how to turn on software encryption. You will not need to reformat the drive or reinstall applications.

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Security Response

@msftsecresponse

2 years

We have released updated customer guidance for reported zero-day vulnerabilities in Microsoft Exchange Server. Please see the MSRC Blog for details -

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Security Response

@msftsecresponse

3 years

MSRC just released a new blog post regarding CVE-2021-34527:

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Security Response

@msftsecresponse

7 years

Just released malware protection engine update to address RCE vuln – Defender will autoupdate.

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Security Response

@msftsecresponse

3 years

Microsoft identified a limited number of targeted attacks. To protect customers, please see for mitigation guidance.

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@msftsecresponse

3 years

Our work continues, but we are seeing strong momentum for on-premises Exchange Server updates: • 92% of worldwide Exchange IPs are now patched or mitigated. • 43% improvement worldwide in the last week.

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@msftsecresponse

5 years

We’re excited to announce the Xbox Bounty Program, which awards up to $20,000 for vulnerabilities in the Xbox network space. Find out more information:

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Security Response

@msftsecresponse

3 years

MSRC has published a workaround for CVE-2021-36934 to help customers as we further investigate the issue.

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Security Response

@msftsecresponse

6 years

Microsoft has released a security advisory for “PrivExchange”, an elevation of privilege vulnerability in Microsoft Exchange Server and identified as CERT/CC VU #465632 :

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Security Response

@msftsecresponse

4 years

Today, we released several security updates for Microsoft Exchange Server to address vulnerabilities under limited, targeted attacks. We recommend customers apply these updates as quickly as possible. See: .

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@msftsecresponse

4 years

Important steps for customers to protect themselves from recent nation-state cyberattacks.

Important steps for customers to protect themselves from recent nation-state cyberattacks -...

Today, Microsoft is sharing information and issuing guidance about increased activities from a sophisticated threat actor that is focused on high value targets such as government agencies and...

blogs.microsoft.com

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Security Response

@msftsecresponse

5 years

Calling all present and future bounty hunters! See our new blog post on improvements to the Microsoft vulnerability bounty program to increase some awards and pay bounties more quickly.

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Security Response

@msftsecresponse

7 years

More on the #ShadowBrokers exploits? See the technical analysis of EnglishmansDentist by Elia Florio

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@msftsecresponse

5 years

We are excited to announce higher Azure bounties and a new space for Azure research! The Azure Security Lab is a set of dedicated hosts that researchers can use to probe IaaS security without affecting customers. To find out more, see our blog.

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Security Response

@msftsecresponse

6 years

We use PGP to sign security notifications and encourage you to use our key when sending vulnerability reports to secure @microsoft .com. We've just updated the MSRC PGP key; the most recent version is always here:

MSRC PGP Key

Microsoft Security Response Center PGP Key

www.microsoft.com

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Security Response

@msftsecresponse

2 months

In our ongoing commitment to transparency, we will now issue CVEs for critical cloud service vulnerabilities, regardless of whether customers need to install a patch or take other actions to protect themselves. Learn more in our blog post:

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Security Response

@msftsecresponse

5 years

August 2019 Security Update includes fixes for wormable RCE vulnerabilities in Remote Desktop Services (RDS), affecting all in-support versions of Windows. These should be patched quickly. For more information, see

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@msftsecresponse

7 years

We are excited to launch our new YouTube channel today with the first videos featuring #BlueHatv17 content. More to come over the next few weeks.

Microsoft Security Response Center (MSRC)

The Microsoft Security Response (MSRC) team identifies, monitors, responds to and resolves security incidents and vulnerabilities in Microsoft software. This helps our customers manage security...

www.youtube.com

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@msftsecresponse

5 years

The May 2019 release includes updates for a critical vulnerability affecting the Remote Desktop Services service in older operating systems; we recommend customers install as soon as possible. More details here:

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@msftsecresponse

3 years

Congratulations to our MSRC 2021 Most Valuable Security Researchers! Thank you to all the researchers who have helped secure our customers. Check out our blog for the full list:

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@msftsecresponse

1 year

Microsoft Bug Bounty Programs awarded $13.8M to 345 security researchers from 45 countries across the globe in the past year. A huge thank you to all the security researchers who partnered with us to help protect millions of customers: #bugbounty

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@msftsecresponse

5 months

We are pleased to announce that we will now publish root cause data for all Microsoft CVEs using the Common Weakness Enumeration (CWE) industry standard. This standard will facilitate more effective community discussions about finding and mitigating these weaknesses in existing

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@msftsecresponse

5 years

Next in our series on eliminating memory safety issues through safe systems programming, we answer the question some of you have asked: why are we talking about @rustlang ? #rustlang

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Security Response

@msftsecresponse

4 years

Providing alternative mitigation techniques to help Microsoft Exchange customers needing more time to patch deployments & are willing to make risk & service function trade-offs. These mitigations are not remediation & aren't full protection against attack.

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Security Response

@msftsecresponse

4 years

Microsoft is aware of limited targeted attacks that could leverage unpatched vulnerabilities in the Adobe Type Manager Library, and is providing guidance to help reduce customer risk until the security update is released. See the link for more details.

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Security Response

@msftsecresponse

4 years

The update for this vulnerability is available here:

Security Response

@msftsecresponse

5 years

Microsoft is aware of a RCE vulnerability in the way that the SMBv3 protocol handles certain requests. If you wish to be notified when updates for this vulnerability are available, please follow the guidance in the advisory linked here:

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Security Response

@msftsecresponse

10 months

Exciting news! 📣 We’re launching the Microsoft Defender Bounty Program, offering awards up to $20,000 for identifying vulnerabilities in our Defender products and services. Learn more in our blog post: #bugbounty

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@msftsecresponse

5 years

Out of band security vulnerability fixes CVE-2019-1367 and CVE-2019-1255 have been released today. For more information please see and .

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Security Response

@msftsecresponse

4 years

Reminder to all our Windows customers to deploy at least the August 2020 update or later and follow the original, published guidance to fully resolve the vulnerability, CVE-2020-1472. For further information, see our blog post:

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@msftsecresponse

5 years

If you've ever wondered how incident response works at Microsoft, we're running a series of posts to illustrate our SSIRP process. Our first entry is live now:

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@msftsecresponse

5 years

Wondering what it's like to learn Rust? Next in our series on safe systems programming, MSRC intern Alexander Clarke describes ramping up on #Rust and how it built on his previous programming experience.

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Security Response

@msftsecresponse

6 years

Microsoft launches new Bug Bounty program for Speculative Execution Side Channel attack security research. Find out more on our blog: . #msrc #bounty

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Security Response

@msftsecresponse

4 years

We are excited to announce a new IoT-focused research program, the Azure Sphere Security Research Challenge, with awards up to $100,000 USD! Deadline to apply is May 15, check out the blog post for more information:

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Security Response

@msftsecresponse

2 years

Looking for your next research challenge? We've got you covered! Exchange on-premises, SharePoint on-premises, and Skype for Business on-premises are now part of the Microsoft Applications and On-Premises Servers Bounty Program!

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Security Response

@msftsecresponse

5 years

Microsoft is launching the Dynamics 365 Bounty. We're awarding up to US$20,000 for eligible vulnerabilities in Dynamics 365 online services and the latest release of Dynamics 365 on-premises. See for more details.

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Security Response

@msftsecresponse

7 years

We're publishing some analysis of the "Eternal" exploits on our SRD blog, beginning with "Eternal Champion".

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Security Response

@msftsecresponse

5 years

In the next installment of our series on using Semmle QL for vulnerability hunting, @l4wio shows how to research DOM-based XSS by finding sources and sinks.

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@msftsecresponse

1 year

Congratulations to our MSRC 2023 Most Valuable Researchers! Thank you to all the researchers who have helped secure our customers. 👏🎉 Check out our blog for the full list:

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@msftsecresponse

4 years

Clang/LLVM and Rust now support Windows Control Flow Guard (CFG):

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@msftsecresponse

1 year

Security Updates for September 2023 are now available! Details are here: #PatchTuesday #SecurityUpdateGuide

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@msftsecresponse

5 years

This month's updates includes CVE-2020-0601 affecting Windows 10. We have not seen it used in active attacks. Learn how this is one example of our partnership with researchers and industry to release quality security updates to help protect our customers.

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Security Response

@msftsecresponse

3 years

See the latest MSRC blog about Point and Print Changes

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@msftsecresponse

3 years

We’re excited to announce bounty awards for Teams desktop client security research under the new Microsoft Applications Bounty Program with awards up to $30,000. Check out our blog for more details:

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@msftsecresponse

7 months

Security updates for February 2024 are now available! Details are here: #PatchTuesday #SecurityUpdateGuide

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@msftsecresponse

2 years

Curious, Innovative, Creative, Community Driven: Meet @Cyb3rWard0g , Roberto Rodriquez our latest Spotlight! Learn more about him at .

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Security Response

@msftsecresponse

2 years

Congratulations to our MSRC 2022 Most Valuable Researchers! Thank you to all the researchers who have helped secure our customers. Check out our blog for the full list: #cybersecurity #securityresearch

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Security Response

@msftsecresponse

2 years

Security Updates for November 2022 are now available! Details are here:

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@msftsecresponse

5 years

We have a tool to help speed up security investigations! MSRC has made our "Time Travel Debugging" (TTD) tool publicly available to help security researchers provide full repro and potentially get higher bounties! See our blog for more details

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Security Response

@msftsecresponse

5 years

Next in our series on safe systems programming: three examples of vulnerabilities that a memory-safe systems language (like @rustlang ) would have avoided. #rustlang

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Security Response

@msftsecresponse

3 years

Today, we are expanding the Microsoft Researcher Recognition Program to recognize more security researchers who help protect our customers. For the first new quarterly leaderboard, check out our blog post: #securityresearch #cybersecurity

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Security Response

@msftsecresponse

4 years

Microsoft is aware of a GRUB 2 vulnerability that could impact Secure Boot. See link for guidance and more details:

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@msftsecresponse

1 month

The Microsoft Researcher Recognition Program offers public thanks and recognition to security researchers who help protect our customers by discovering and sharing security vulnerabilities under Coordinated Vulnerability Disclosure. Today, we are excited to recognize this year’s

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Security Response

@msftsecresponse

3 years

Security Updates for August 2021 are now available!. Details are here:

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@msftsecresponse

2 years

Check out the scrolling MVR list that played at the MSRC Black Hat party! @guhe120 @pnig0s @callum_infosec @wtm_offensi @MDeilamyM @edwardzpeng @bee13oy @SinSinology @Hperalta89 @b2ahex @kasifdekel @jq0904 @Creastery @M3ikShizuka @ronenshh @Yanir_ @hillstone_lab @D1iv3 @DrAzureAD

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@msftsecresponse

3 years

We've increased the top Azure Bug Bounty awards to $60,000 with new, high-impact, high-award scenarios. For more information, check out our blog post:

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@msftsecresponse

5 years

@msftsecresponse is privileged to collaborate with some very talented people. For a recent example, see our blog on how we worked with @tiraniddo to address a bug class he identified, and how third-party driver developers can avoid it.

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@msftsecresponse

1 year

Security Updates for June 2023 are now available! Details are here: #PatchTuesday #SecurityUpdateGuide

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@msftsecresponse

4 years

Security Updates for March 2021 are now available!. Details are here:

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@msftsecresponse

5 years

A security update addressing CVE-2019-0708 was released on May 14 2019, but recent public reports indicate nearly one million computers are still vulnerable. Microsoft strongly advises that all affected systems should be updated as soon as possible.

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@msftsecresponse

4 years

Security Updates for February 2021 are now available!. Details are here: Important: Microsoft released Windows Updates for multiple TCP/IP vulnerabilities today. See this blog for more details about these issues:

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Security Response

@msftsecresponse

6 years

Microsoft’s Cyber Defense Operations Center shares strategy paper with insights into how we work to protect, detect, and respond to cybersecurity threats. Access the paper via our blog. #MSFTCyberSec , #CDOC , #cybersecurity , #MSCloud , #MSIT

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@msftsecresponse

3 years

Security Updates for September 2021 are now available!. Details are here:

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@msftsecresponse

4 years

Today we are announcing the new version of the Microsoft Security Update Guide. Find out more about it here: .

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@msftsecresponse

2 years

Microsoft Bug Bounty Programs awarded $13.7M to 335 security researchers in the last year. A big thank you to everyone for your continued work to help secure millions of customers. #bugbounty #cybersecurity #securityresearch

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Security Response

@msftsecresponse

5 years

It's that time of the year! We unveiled MSRC’s 2018-2019 Most Valuable Security Researchers at Black Hat USA this morning. If you cannot make it to the Microsoft booth, check out the list in our blog. Congratulations and thank you!

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@msftsecresponse

3 years

Security Updates for July 2021 are now available!. Details are here:

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@msftsecresponse

7 years

We've got a new blog on VulnScan, MSRC's internal tool to help automate triage and RCA for memory corruption issues

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@msftsecresponse

4 years

Congrats to @TalosSecurity , their researchers earned the first two General Scenario bounty awards in the Azure Sphere Security Research Challenge! Thanks for your help in securing the IoT—keep up the great work!

Azure Security Lab

www.microsoft.com

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Security Response

@msftsecresponse

3 years

Security Updates for March 2022 are now available! Details are here:

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@msftsecresponse

4 years

We have updated the KB article for CVE-2020-1472 to provide clarity on customers actions to ensure they are protected. See details here:

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@msftsecresponse

6 years

Microsoft has published debugging symbols for many of the core components of Hyper-V! We invite you to take a look... and submit any vulnerability reports to secure @microsoft .com for bounty review.

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@msftsecresponse

3 years

Microsoft is monitoring escalating cyber activity in Ukraine & published analysis to give organizations the latest intelligence to guide investigations into potential attacks & info to implement proactive protections against future attempts. Read more at .

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@msftsecresponse

7 years

Microsoft is proud to announce the BlueHat v17 schedule! Looking forward to the conference in November. #bluehatv17

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@msftsecresponse

3 years

Today we’re excited to introduce MSRC Comms Hub, a new way for security researchers to collaborate with the Microsoft Security Response Center. See our blog post: for more details!

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Security Response

@msftsecresponse

7 years

Released guidance for securely opening Microsoft Office documents that contain Dynamic Data Exchange (DDE) fields.

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@msftsecresponse

4 years

Reminder to our customers to deploy the latest security update & follow the published guidance to prepare for the Feb 9, 2021 Security Update that enforces Secure RPC for Netlogon secure channel connections (CVE-2020-1472). For further info, see our blog:

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@msftsecresponse

6 years

Microsoft is launching the Azure DevOps Bounty with rewards up to US$20,000 for eligible vulnerabilities in Azure DevOps online services and the latest release of Azure DevOps server. Read more on our blog #MSFTCyberSec , #bugbounty , #AzureDevOps

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@msftsecresponse

7 years

Customer guidance on the side-channel issue that was disclosed today is available here:

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@msftsecresponse

6 years

We're happy to announce a new bounty for identity services, with payouts ranging from $500 to $100,000. See our blog for more details and a link to the bounty terms. We're looking forward to seeing what you find.

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Security Response

@msftsecresponse

2 years

#BlueHat is back! We are thrilled to announce () that the next @MSFTBlueHat conference will be Feb 8-9, 2023, on the Microsoft Campus in Redmond, WA. Call for Papers is now open at . More details to come!

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@msftsecresponse

4 years

We are excited to announce the all new MSRC Report Abuse Portal and Report Abuse API! Read more at:

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@msftsecresponse

5 years

More opportunities to earn bounty rewards for browser research with the new Microsoft Edge Insider Bounty! We’re awarding up to $30,000 for eligible vulnerabilities in Microsoft Edge based on Chromium. See

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Security Response

@msftsecresponse

4 years

Microsoft would like to thank our industry colleagues at Volexity and Dubex for reporting different parts of the attack chain and their collaboration in the investigation.

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@msftsecresponse

3 years

Security Updates for October 2021 are now available!. Details are here:

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@msftsecresponse

3 years

This week marks 20 yrs since @BillGates Trustworthy Computing memo. To celebrate, @nchlgpt , VP of MSRC, reflects on the significance of this milestone w/ thoughts from @dwizzzleMSFT , @JohnLaTwC , @Lee_Holmes , @markrussinovich , @michael_howard , & @tiraniddo

Celebrating 20 Years of Trustworthy Computing | Microsoft Security Blog

20 years ago this week, Bill Gates sent a now-famous email to all Microsoft employees announcing the creation of the Trustworthy Computing (TwC) initiative. The initiative was intended to put...

www.microsoft.com

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Security Response

@msftsecresponse

3 years

The April security updates available! Visit for full details.

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