Martijn Grooten didn't know much about computer security when he joined Virus Bulletin to maintain its website. But seeing the security community from the inside he quickly got hooked. He set up Virus Bulletin's comparative anti-spam tests, and became VB Editor in 2014. He has a broad interest in security and has written and spoken about a wide-range of subjects. Before joining Virus Bulletin, he worked as a researcher in pure mathematics, a background he occasionally finds useful when it comes to cryptography.