SEC-T 2026

[Community Training] badlock: Hack a Not-So-Smart Padlock

In our 2023 BSides London talk, we revealed a number of vulnerabilities in a popular line of smart padlocks which allowed unauthorised users to obtain unlock credentials for any affected lock and open it without the owner’s knowledge.

Building on this research, we've developed a training lab to help introduce newcomers to IoT and mobile hacking. Our lab setup replicates the app responsible for controlling the smart locks, and serves as a practical introduction to mobile application reverse-engineering, Bluetooth Low Energy communications, with a garnish of simple API testing. We'll bring the locks and mobile phones to control them.

Bring your own laptop with a Linux VM (Kali works). We'll bring the phones, the locks, and the app. :)

Alex Pettifer

Alex is a security consultant at Reversec, specialising in mobile applications and thick client testing. They are passionate about locks and physical access controls, and how both can break in interesting ways.

Favourite padlock: Abus 72/40