I don't know in this specific case, but for other games/emulators you can either use a hacked version of the game that doesn't require a security check, or, if

I don't know in this specific case, but for other games/emulators you can either use a hacked version of the game that doesn't require a security check, or, if you can reverse engineer what the authentication server does, point the game to some other server (i.e. https://en.wikipedia.org/wiki/Bnetd#CD_key_non-interoperability https://en.wikipedia.org/wiki/Bnetd#CD_key_non-interoperabil...) that acts that the authentication server.