Systems, cloud, AI, and writing
CTO, Deputy CISO and Technical Fellow, Microsoft Azure.
Creator of the Sysinternals tools, co-author of the Windows Internals series, and author of the Jeff Aiken cyberthrillers. Current work spans Azure engineering, AI security research, and a podcast with Scott Hanselman.
Current work
Scott & Mark Learn To
Biweekly conversations with Scott Hanselman on AI, engineering craft, and systems — recorded on video, usually with real code on screen.
Latest episode: Game
AI and agent security
Papers on agent security, jailbreaks and red teaming, unlearning, and planet-scale infrastructure, each linked to the paper and its publication venue.
Latest paper: Fool’s Gold: Defensive Deception Against Safety-Removal Attacks on Open-Weight Models
Explore
Books
The Jeff Aiken cyberthrillers plus the Windows Internals and Sysinternals references, with Amazon links and ratings.
Blog
Technical deep dives and industry commentary, from the Sysinternals-era classics to recent posts.
About Mark
Background, speaking, writing, and the through-line from Windows internals to cloud and AI research.