Ai

SensePost’s 2026 Artwork

08 July 2026 ~3 min By Dominic White
Ai Art
For many years, we’ve released an annual artwork. These are always hand crafted by our people or an artist. Here is this year’s piece and the story behind it. This year’s artwork was created by Kei-Ella. We have worked with Kei before and wanted someone who could bring a more feminine angle to the typical hacking art. We think she did an incredible job, thanks Kei! The art can just…

Capchan – Solving CAPTCHA with Image Classification

13 March 2025 ~25 min By Adriaan Bosch
Ai Ctf Neural-Nets Tool
A few years ago, I tried my hand at the, now retired, CAPTCHA Forest CTF, which was part of the nullcon HackIM 2019. I wanted to solve it using computer vision and machine learning. This started me on a path of discovery and incremental improvements that finally resulted in capchan, a generic CAPTCHA to text tool. This post is broken into four parts: The first CTF The second CTF Neural…