This is not the case. - How do I know ? Mostly from my experience with internet : 1. The site from where I downloaded the emulator does not have clickbaits or popunders/popups or so... 2. They have full info about these 3 games/roms, together with videos "how to" 3. If the programmers/hackers provided source code it would be in the 7z archive that I downloaded 4. The emulator is fully working (It is MAME for sure, has internal UI, every shortcut works, only one driver included) 5. After all its only a game, if they want to stole Your informations they will surely go with newer games like Fifa 2017 or something with Denuvo cracked which has large popularity between gamers; these 3 games is only atractive for a few players/gamers around the world. 6. The site is not related with pr0n in any way 7. The site is English if that means anything at all ?! (Does not matter to me if it was Chinese/Vietnamese/Taiwanese...)
P.S. After all, the roms/rom sets that we all downloaded from PleasureDome (which is suggested here) through torrent - Are they safe from malware/software attacks/viruses ?