7 ms·Xbox Security Protocol. We liked to add X to things back then.by dinartem 3y agoXbox Security Protocol. We liked to add X to things back then.CYR1X 3y agoSince you branded it, did you use it in any other games by chance?monocasa 3y agoWhat they're talking about is the base protocol for all Xbox system link and Xbox live games. AFAIK, it persists to this day, extended with newer features (and crypto primitives).