David Weston is the Partner Director of OS security at Microsoft where he is responsible for the Security engineering of Windows, Windows Server, and the Azure OS as well as the Offensive Security Research Team (also known as the Windows REDTEAM).  Before leading security engineering in Windows, David lead the security research team for Microsoft Defender ATP the team responsible for detecting and responding to global adversaries.  David has been with Microsoft since Windows 7, holding many different security roles in mitigation design, penetration testing, malware analysis, and threat intelligence.  In addition to his engineering work, David is also an accomplished security researcher presenting his work at numerous security conferences including Blackhat and Defcon.