Christoffer Jerkeby is a security researcher working as a consultant for F-Secure Sweden. He has previously worked in telecom security research for many years and has become known from talks on Travel card hacking at SEC-T Stockholm in 2010. Christoffer is an organizer behind the Danish hacker camp Bornhack and one of the founders behind the first Swedish hackerspace Forskningsavdelningen in Malmö. Christoffers research has ranged from writing the specification for GlobalPlatform TEE Socket/TLS API, Bluetooth Mesh security to finding Qubes vulnerabilities, Wi-Fi vulnerability research, VPN de-anonymization and GSM fuzzing.