Threats and LLMs (Threat Model Thursday)
There are many ways to ask what can go wrong, and the useful skill is knowing which one matches what you're building.
Shostack + Friends Blog
Recent Blog Posts
Diagrams versus Models (Threat Model Thursday)
What does the new book tell us about the difference between diagrams and models?
Heading to San Francisco and ready to party for OWASP's 25th
If by party, you mean obsess over European bureaucracy, train people in the ways of the Force.. umm, threat modeling, and talk about the book until our voices give out.
The Pentagon, China, AI and PHANTOM-B
Could PHANTOM-B have stopped this close call?
Diagrams and Common Elements (Threat Model Thursday)
All diagrams should have common elements, and using them consistently is a mark of skill and maturity
Threat Modeling Intensive with Complete AI: From a Developer's POV
Reflections from a Developer
Dive into our annual Back to School sale on self-paced training
Upgrade your engineering skills this fall with 20% off our self-paced Threat Modeling courses.
Diagram Style (Threat Model Thursday)
What makes a diagram good or useful?
Save on Threat Modeling 2nd Edition
Barnes & Noble is having a preorder sale. Save on Adam's new book, coming February 2027!
Appsec roundup - July + August 2026
The CRA, how AI is showing up in security requirements, threat modeling, bug fixing and inventing biases in its spare time. Also, a lot of cool books by other authors.
Diagrams and Clarity (Threat Model Thursday)
Diagrams serve needs, and surprisingly, form follows function
Register now for our training at OWASP
Join us in San Francisco for our popular 3-day Threat Modeling Intensive With AI
Boundaries, Not Trust Boundaries (Threat Model Thursday)
Boundaries are a crucial topic in the new threat modeling book
Why threat modeling is the technique that survives AI disruption
AI is disrupting software security, but traditional threat modeling remains the ultimate survival skill.
Threat Modeling: A Second Edition
The long-awaited second edition of Threat Modeling...