- The CloudSec Rocket
- Posts
- Using o3 to analyse architecture diagrams for security issues
Using o3 to analyse architecture diagrams for security issues
A new "CloudSec expert in your pocket"

Table of Contents
Background
This micro-post captures an example of using OpenAI's new o3 model to analyze a hand-drawn architecture diagram to make security recommendations.
This takes advantage of the great visual reasoning capabilities in the new o-series models.
This is not a stand-alone post, but rather a useful reference.
The Prompt

The Answer
Note: this answer was copy-pasted in chunks to this page, so please ignore the weird changes in font size — I’m too lazy to fix this up right now 😅



The Answer: o3 summary

o3 ended with a great summary, including a nifty lil’ ASCII diagram
My Thoughts
I was impressed by this response.
This was a quick and dirty test, but o3 nailed it. It provided a clear, technically accurate checklist of security controls for this solution.
I used an Azure example since that’s the cloud I work with but obviously this technique would work for AWS, GCP, etc too.
Very promising. I'll continue to explore what more can be done with these new o-series models and keep y’all updated!