

AI Security for Defenders and Breakers
How real AI systems break, from chatbots to agents with tools, and how to assess and defend them. Built on the OWASP Top 10 for LLM Applications.
Start free: AI Security, Explained, 7 pages

Plain-English ebooks on how real attacks work and how to stop them. Every topic starts with a free guide.
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How real AI systems break, from chatbots to agents with tools, and how to assess and defend them. Built on the OWASP Top 10 for LLM Applications.
Start free: AI Security, Explained, 7 pages


How Active Directory gets attacked, from Kerberoasting to forgotten service accounts, and how to lock each path down.
Start free: Active Directory, Explained, 7 pages


x86-64 assembly, the stack and ELF files, explained from zero, with a quiz at the end of every chapter.
Start free: The reverse engineering cheat sheet, 3 pages

A Notion workspace for CTF and pentest practice: machines, session logs, findings and credentials in one place.
Your exact SPF, DKIM and DMARC records, written for your provider, with a week by week rollout you apply yourself.