Windows Security Response

Overview

The Windows Security Response process defines how Microsoft detects, investigates, mitigates, and resolves security vulnerabilities in Windows operating systems. It follows a structured lifecycle to ensure timely protection for customers while maintaining transparency and compliance.

Response Process

  1. Detection – Automated scanning, bug bounty submissions, and external reports.
  2. Validation – Reproduce and assess impact, assign severity.
  3. Mitigation – Deploy temporary mitigations or workarounds.
  4. Remediation – Develop patches or updates.
  5. Release – Distribute updates via Windows Update, WSUS, and Microsoft Update Catalog.
  6. Post‑Release – Verify deployment and monitor for regressions.

Best Practices for Developers

  • Validate input and use secure APIs.
  • Apply the principle of least privilege.
  • Regularly patch development environments.
  • Enable Secure Development Lifecycle (SDL) checks.
  • Use CodeQL or similar static analysis tools.

Tools & Resources

ToolDescription
WinDbgDebugging and crash dump analysis.
Process MonitorReal‑time file system, registry, and process activity.
Microsoft Defender ATPEndpoint detection and response.
Secure BootPrevents unsigned code execution at boot.