Thijs Alkemade (@xnyhps) works at the security research division of at Computest. This division is responsible for advanced security research on commonly used systems and environments. Thijs is a Pwn2Own winner by demonstrating a zero-day attack against Zoom. In previous research he demonstrated several attacks against the macOS and iOS operating systems. He has a background in both mathematics and computer science, which gives him a lot of experience with cryptography and programming language theory.