[mamorunl]

Quote:

Originally Posted by ****** That doesn't mean they are unique, that just adds to their variability since you can't guarantee that they will be the same and also can't guarantee that they will change.

The IP address is not unique? What are you talking about?

Yes, some ISPs have static IPs and some don't. You also cannot really hi-jack an IP address so you would have to be really lucky to get the IP address of someone else and know the username. That makes this login method safe enough.