Assassin's Creed harms PS3?

I've been to lots of forums about Assassin's Creed. But a thread really bothers me. It says that Assassin's Creed made his PS3 Crash.. When he is playing, the game freezes and you can't switch off the console.

I wonder if it's true.. I've browsed a little more to know what is the solution if this happens to your PS3.. They say that you need to download or have the patch for your ps3 to keep running. So the game has a patch..

So guys, if this happens to you, better get the patch, if there's any..