Bram Bonné is a PhD student in computer science at the Expertise Centre for Digital Media at Hasselt University, where he specializes in computer security and privacy. During his PhD, he developed an interest in privacy-sensitive information leaking from smartphones and laptops. Bonné  summarizes the basic Wi-Fi technology hackers exploit for “man-in-the-middle” attacks. He explains how your personal information is available to anyone tracking Wi-Fi traffic and some steps you can take to make these type of attacks more difficult.