[Tangokat]

"Under a specific set of circumstances related to the ‘Thumbs Up/Down Table Reaction’ feature, which involves decompilation of our Windows game client, interception of network traffic, and alterations of our game packets, Moneytaker69 was able to customize his own game client."

I'm wondering if someone with a web security background can chime in.. but allowing this seems like a rookie mistake if you're running a large poker site to me.

[hattmall]

Not really, you can spend unlimited resources trying to prevent modifications and people will still figure it out. It's best to not overly worry about it and spend the resources detecting abnormal activity and banning users while making it difficult to get back on. No doubt there are players using bots to their advantage, but as long as their game play is indistinguishable from normal human play the advantage is minimal.