I ordered a multi-factor authentication key fob for Amazon AWS from their recommended vendor, Gemalto. When I tried to register it, it didn't work. I emailed Amazon and they said there was a defective batch and they are sending me a new one.<p>The device works, in that pressing the button shows a number that changes periodically. I'm wondering what the screw-up was. Does anyone know? Should I trust the new device when I receive it?
<i>I'm wondering what the screw-up was.</i><p>My guess is that Amazon lost their copy of the keys (and thus can't verify the codes produced by the device).<p><i>Should I trust the new device when I receive it?</i><p>Yes. As much as you trust Amazon generally, of course.