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8-05-2008 @ 4:27PM
All authenticators use "read ahead", so if you press the fob in your pocket, you can still generate usable codes. How far does the blizz one read ahead? 512 keys? 1024? 8?What happens if you generate that many codes without using one (thereby not resynching the code generated with the acceptable codes)? If this were a keyless entry system on a car, you would have to use the key to open the door and perform an elaborate series of actions described in the manual to resynch the key. Since this is an online game, you probably have to call customer support and have them resynch the expected codes to your fob. This process could be exploited.Next question- if your machine is compromised by a keylogger, how does having a fob prevent a man-in-the-middle attack? The software could intercept your code (and enter an incorrect one on your behalf), and use it to access your account while you're staring at an "incorrect code" error message.Another layer of protection is good, but don't assume that this means you can stop worrying about hacking.
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