 Taiwan was not a signatory of the Berne Convention on copyright, limiting Sega's legal options in that region.However, Taiwan did allow prosecution for trademark infringement.Though Sega had created security systems in their consoles to keep their software from being pirated and to keep unlicensed publishers out, much like its competitor Nintendo, counterfeiters had discovered ways to prevent the Sega trademark from appearing on their games, bypassing the trademark altogether.