Playing party poker yesterday, I kept getting this spam:

"Ever expect your opponents of cheating? You're probably right!"

And then it tells you to go to some site where they claim to have software that lets you see each players cards. They call it "card tracking software," and when you try and look at their FAQ, it explains absolutely nothing about what the softare does. It just uses words like "offers improved stealth technology" and such. I'm not going to dignify these people by posting their website, but I hope nobody actually got ripped off by them. I bet there are a ton of people out there who believe that you can actually see what other players have during a hand.

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Poker Site Reviews

It's a bunch of crap but there was a team of engineers who several years ago cracked the system but since then it's been fixed. Collusion is the only cheating going on that I know of.