Using the iWatch for Authentication
Usability engineer Bruce Tognazzini talks about how an iWatch—which seems to be either a mythical Apple product or one actually in development—can make authentication easier.
Passcodes. The watch can and should, for most of us, eliminate passcodes altogether on iPhones, and Macs and, if Apple’s smart, PCs: As long as my watch is in range, let me in! That, to me, would be the single-most compelling feature a smartwatch could offer: If the watch did nothing but release me from having to enter my passcode/password 10 to 20 times a day, I would buy it. If the watch would just free me from having to enter pass codes, I would buy it even if it couldn’t tell the right time! I would happily strap it to my opposite wrist! This one is a must. Yes, Apple is working on adding fingerprint reading for iDevices, and that’s just wonderful, but it will still take time and trouble for the device to get an accurate read from the user. I want in now! Instantly! Let me in, let me in, let me in!
Apple must ensure, however, that, if you remove the watch, you must reestablish authenticity. (Reauthorizing would be an excellent place for biometrics.) Otherwise, we’ll have a spate of violent “watchjackings” replacing the non-violent iPhone-grabs going on today.