There's a decent explanation here: http://www.codinghorror.com/blog/2007/12/the-danger-of-naivete.html http://www.codinghorror.com/blog/2007/12/the-danger-of-n

There's a decent explanation here: http://www.codinghorror.com/blog/2007/12/the-danger-of-naivete.html http://www.codinghorror.com/blog/2007/12/the-danger-of-naive... There's also a more complete story about the online poker exploit here: http://www.cigital.com/papers/download/developer_gambling.php http://www.cigital.com/papers/download/developer_gambling.ph...