I have an limit of €1000 , but lets look at this in perspective. There are from what we are told 70 million psn accounts, lets say 40 million accounts have creditcard details. The chance that they are using your creditcard details, is so small that you sooner win the lottery or die of cancer. Add to that, that they don't have the security number and the expiration date wich they would have to guess right. Now the chances are so small that you would sooner see a gorilla reciting Plato. But ofcourse according to the law of big numbers, somewhere some poor sob is going to get hit. But then again if you check your spendings you will have 30 days time to cancel ANY transaction.