The way the Trademark security system worked was that certain company names would be checked at boot up, and if not present, the console would lock up. Both Nintendo and Sega used this system to give them the ability to sue unlicensed game makers for trademark infringements if they got their games to boot. When Sega went to court with accolade, the legality of this system was eventually questioned, and it was ruled that these schemes did not constitute trademark infringements. However, Sega continued using TMSS all the way until the dreamcast. I'm guessing that this is because while these systems didn't hold up in the US, they might have held up elsewhere in the world? Anybody know why TMSS was continued to be used after Sega v Accolade?