datagram has taught about locks, safes, and methods to compromise them for many years, including training to private companies and government agencies. He has spoken many times on physical and digital security at various conferences and is a part-time forensic locksmith. datagram runs the popular lock and security websites lockwiki.com and lockpickingforensics.com. datagram is the leader of "The Motherfucking Professionals," the team that won the first Tamper Evident contest at DEF CON 18.