In addition to being certified as a Forensic Locksmith and a Safe and Vault Technician, it sometimes surprises people to learn that I am a Life Safety NFPA & ADA Consultant and Fire Door Inspector. "Deviant, do you make a lot of money doing safety inspections like that?" I get asked. The answer is a resounding no. I didn't take this training for the money, however. I learned about fire doors and fire suppression systems so that I can speak knowledgeably about them if I'm using this field as a cover identity during a break-in job.
This presentation is a comprehensive crash course in the field of National Fire Prevention Association knowledge and building codes. The rundown offered will afford you a lot of useful tips, terminology, and insider knowledge that you can rattle off at an unsuspecting employee or guard who is curious as to what you're doing inside of their building.

What do you do when you’ve found an arbitrary file delete as NT AUTHORITY\SYSTEM? Probably just sigh and call it a DoS. Well, no more. In this article, we’ll show you some great techniques for getting much more out of your arbitrary file deletes, arbitrary folder deletes, and other seemingly low-impact filesystem-based exploit primitives.

Rendering text, how hard could it be? As it turns out, incredibly hard! To my knowledge, literally no system renders text “perfectly”. It’s all best-effort, although some efforts are more important than others.

Back in 2017, I was building a rich text editor in the browser. Unsatisfied with existing libraries that used ContentEditable, I thought to myself "hey, I'll just reimplement text selection myself! How difficult could it possibly be?" I was young. Naive. I estimated it would take two weeks. In reality, attempting to solve this problem would consume several years of my life, and even landed me a full time job for a year implementing text editing for a new operating system.