Is 40-bit SSL really unsafe?
40-bit SSL is not really unsafe. It’s just that it is computationally feasible to break the key used in 40-bit but not the key used in 128-bit. Even though 40-bit can be broken, it takes a fairly large number of computers to break it. Nobody would even attempt to do that for a credit card number or the like. But there are claims of breaking the 40-bit RC4 key in a few hours. So depending on the data your application deals with, you can decide on the SSL strength. Using 128-bit is definitely safer.
