Credit card fraud

this year i met with a guy who knows people that do credit card fraud . since he's friends with them they sometimes give him a couple of cards to buy netflix/Spotify memberships and other stuff if yk what i mean . i was so curious about it , i wanted to know how this whole thing works especially in tunisia but every time i ask him he always avoids me . so if u don't mind me asking , and if there's somebody here who knows what im talking about . What's the law position in this matter ? is it softer here compared to foreign countries? where do u even learn this ? i don't have any intentions to any of this just for educational purposes , also im not a cop.