Hacker & Math guy, formerly a Musician; Having started out on helpdesk in a software firm, then becoming violinist with a degree in Music w/ Philosophy via being a DBA for a firm, Mark then went on to do an MSc and now full-time PhD study in Mathematics. This rounded off several years getting into the infosec industry, Mark now works for Security Research Labs in Berlin as a pentester and security researcher, specialising in anything low level; hardware, crypto, and lots of reverse engineering.