Microsoft Security Response Center (MSRC)

https://msrc.microsoft.com/blog

Microsoft Security Response Center blog (added 2026-05-08). MSRC handles vuln coordination & Patch Tuesday context, distinct from MSTIC's actor-tracking. The landing redirects to www.microsoft.com/en-us/msrc/blog and renders as a navigation shell on WebFetch — drill into individual /blog/YYYY/MM/<slug>/ posts. Candidate — promote to active after 3 runs with content contribution.