Top posts

Every blog post that took off on Hacker News, ranked by the votes of its best submission. 459 posts.

Hardware & Electronics
2025
18

Root shell on a credit card terminal

In this project, I started to reverse engineer payment card terminals because they seemed to be an interesting target for security research, given the high stakes involved. Although I initially didn’t know much about this industry, I did expect a ton of security features and a very security-hardened device. And to…