'Perfect' online poker bot Cepheus has one flaw: it can't adapt

I played 400 hands against Cepheus, a poker-playing computer program developed by scientists at the University of Alberta, and I must admit that I am yet to be fully convinced by the scientists' claims of its infallibility. People have been trying to create online poker'bots' for many years now, though they are illegal on real money websites and security teams are constantly monitoring for suspicious accounts. The last thing both the sites and regular players want are successful bots scaring the more recreational types who are happy to hand over their cash. So claims by computer scientists in a highly respected scientific journal to have created a near perfect player will make the poker world take notice. The choice of heads-up limit hold'em for Cepheus makes obvious sense: just two players and fixed betting amounts to keep things as simple as possible for the computer.