Microsoft Security Response Center

@msftsecresponse

We are the Microsoft Security Response Center. To report security vulnerabilities or abuse in Microsoft products, visit microsoft.com/en-us/msrc.

Redmond

msrc.microsoft.com/blog/

Joined February 2010

232 Following

145.1K Followers

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Microsoft Security Response Center
@msftsecresponse
Oct 22
We’re updating the Microsoft 365 Bounty Program to make program scope clearer for researchers. One of the biggest changes: we’re shifting from domains to services, making it easier to understand which Microsoft 365 services are included in the program and how eligible research
microsoft.com
M365 Bounty | MSRC
Microsoft Cloud Security official bounty program
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Microsoft Security Response Center
@msftsecresponse
Oct 20
Security researchers play an essential role in helping Microsoft protect customers, and we appreciate the time and expertise that goes into every vulnerability report. Many researchers already provide the detailed, actionable reports our teams need to reproduce and assess
microsoft.com
Introducing Complete and Not Complete report assessments across Microsoft bounty programs
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Microsoft Security Response Center
@msftsecresponse
Oct 13
Security updates for October 2026 are now available. Details are here: msrc.microsoft.com/update-guide/ As security update packages address more CVEs, prioritization can become more complex. In a new blog, we explore risk cohorts, an approach to grouping CVEs around shared deployment,
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Microsoft Security Response Center
@msftsecresponse
Oct 6
Server-Side Request Forgery (SSRF) remains one of the most impactful vulnerability classes in cloud environments, where network reachability, identity, and trust boundaries intersect. In our latest blog, we explore how SSRF works, why cloud-hosted environments amplify its
Microsoft Security Response Center
@msftsecresponse
Oct 5
For more than three years, Artem Shymshyrian (@Xtytia0922) pursued bug bounties without receiving one. Instead of giving up, he made a promise to himself: keep going until he earned his first bounty, even if it was only one dollar. That persistence eventually helped Artem become
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Microsoft Security Response Center