Simple Query: How rampant are hackers/cheaters on PSN?

[Don86]

Hey guys,

I feel like asking this question as i was helping my fren buy a ps3 slim(getting one soon myself) and i discovered the fact that the 2.5" laptop HDD can be used as a hard drive for PS3..so i'm guessing they can use mount it on their PC/laptop and install hacks/editors(correct me if im wrong) to use it for their PS3?

So i want to ask if the cheaters and hackers are as rampant on PSN like on the games i play on PC.I really detested DOTA maphackers and wallhack/aimbot users on CS.

I'm asking this because it will help me determine whether i will get more JRPG/single player games for my game library.

Thanks in advance!