Copy protections are everywhere. On music, movies, games, pretty much everything that is digital. But where did it start ? Not on your C64 in 1982 or any other home computer from that era but many of the R&D that we still see today found its origin in the Arcades of the early 80s. This seminar covers the copy protection schemes of way back then and how they influence the world today... From angry letters over encryption to planned system suicide.