Ryan "LosT" Clarke has been involved with DEF CON for 16 years. In addition to his role on the CFP board, LosT serve's as DEF CON's official Cryptographer and Puzzle Master. He is best known for his early LosT @ CON Mystery Challanges designed to force creative thinking, and also introduced him to his amazing wife! Now he is responsible for designing the badges and lanyards for DEF CON, in addition to torturing a subculture of enthusiastic crypto fans with his ever-so-subtle clues and red herring rabbit holes in his yearly Badge challenge. LosT enjoys learning as much as he can about as much as he can. He can usually be found around CON in the 1o57 room, mostly encouraging and sometimes distracting a ragged band of sleep-deprived attendees who are racing to complete the challenge.