Then they decide that a random function will trow every time a 4. and well.. they screw it up. lol.^this
the ps3 was a whole another beast, for one it had a self made cpu architectur which had close to 0 Documentation for it so everything needed to be done from scratch and the lv 0 security layer was really got protected.
The ps3 to this date is one of the most secure Platform ever. So secure that they used the Concept for the Psvita too.