Master Agents for
Defensive Security
Security work is changing, and defenders need more reach. Learn to use agents to amplify your own abilities and systems, with your judgment at the center.
Become the defender who
builds what comes next.
Take the security expertise you already have and give it greater reach. Build agents that work alongside you, extend your workflows, and amplify your abilities.
I’ll teach you how to develop that capability to meet the scale of the challenges that lie ahead.
Build Your Own Agentic Defense
Start mastering agents for defensive security with my flagship, self-paced online course, designed specifically for defenders.
Follow a structured path from understanding agents to using them in your own environment.
Or start with the free lessons ›What’s included
- 125 lessons
- Hands-on labs
- Build It Yourself guides
- Lifetime course access
- Course updates included
- One-time purchase
How we teach
The instructor
Faan Rossouw
I’m a security researcher and instructor. I’ve taught thousands of defenders to find adversaries in network and endpoint telemetry, and earlier in my career I developed offensive security tooling and taught courses on that too.
When agents arrived, I went looking for a course that taught how to build with them from the foundations up. It didn’t exist, so I built my own agentic defense system and turned what I learned into AionSec: the course I couldn’t find.
What students say
Feedback from students in my courses and workshops.
One of the best training classes I've taken in years. As someone who has been using Agentic AI on a daily basis since late last year, I can confidently say this class is for all levels. The labs have a great flow. I paid for this class myself and I'm glad that I did.
The course is clear, well-structured, and presented with a strong, confident grasp of the material. If you want to learn agentic AI and apply it to security in a methodical and hands-on way, he's someone who can genuinely help you deepen your understanding and elevate your practice.
Faan's in-depth knowledge and his amazing way of explaining things in the KISS format makes complex topics genuinely accessible. I highly recommend his trainings and will definitely be attending more sessions.
Each lesson is well designed to bring students of all levels up to speed and make complex concepts digestible. His experience and passion impart a contagious desire for learning—fun and thoughtful while maintaining lightheartedness through high-level technical material.
that none
can walk but you.
Where does it lead?
Don't ask, walk!
Build Your Own Agentic Defense
Follow one intrusion from raw telemetry to an evidence-cited report, and learn how the system’s tools, skills and memory fit together.
- 125 lessons, written and on video, and 23 hands-on labs
- Lifetime access, with course updates included
- Your model, your key — frontier API or local open-weight
$499USD
- One-time purchase
- 14-day money-back guarantee
Free lessons
Not ready for the course? Start learning.
Video + articleHow an Agent Decides What to Do Next
Think, act, observe: follow a tool request around the agent loop, and see how each result shapes the next question.
Video + articleWhat Is Threat Hunting?
Bring human judgment into detection, understand its limits, and see how agents can extend it.
Video + articleBuild Agents That Amplify You
Collaboration by design, amplify rather than automate, and the right system for each job.
Video + articleStop Overengineering Your Agents
Only ever make things as complex as they need to be. What that means for an agent harness.
Video + articleHow Should Security Agents Use Data?
When the data is prepared, how it is represented, and how those choices work together.
Video + articleThe Foundational Problem of Using Agents for Security
Why raw telemetry needs a designed interface before it reaches an agent.
advanced technology
is indistinguishable
from magic.
Stay in the loop
Keep learning.
Keep building.
Every free lesson I publish comes together in one email, with a short note from me. That way you keep up as agents change defensive security, without chasing YouTube, LinkedIn and the blog.
A digest every second Thursday, with new articles and videos. No spam. No automated marketing flows.
Next digest: Thursday 8 October See a sample issue ›
