Couldn’t two or more friends with a Pokerstars account, just talk on the phone or by instant messenger to cheat?
Yes, people probably try to join the same table and communicate via instant messenger or by phone to share their card information. This method of cheating is called collusion, and is the lamest form of cheating. It simply doesn’t make the cheaters enough money to justify the effort. Personally, I play online poker almost daily without concern of cheaters or poker sites being rigged. Take that for what it’s worth.