At launch, the Home button on the iPhone 5S can be used to unlock your phone
without you having to enter your PIN and it can be used to authenticate iTunes
purchases without requiring you to enter your password. It wouldn’t be
surprising to see such functionality eventually extended to third-party apps as
well.
This has lead to the inevitable assumption that thieves the world over will
be roaming the streets with cigar cutters, looking to anyone flashing an iPhone
5S.
The thieves will subdue you, chop your finger off, use it to unlock your
phone, and then use it to purchase Herbie: Fully Loaded with your
money. These thieves will preserve your severed finger for eternity, using it
time and time again to download apps, movies, TV shows and songs until you
finally go bankrupt.
You will call Apple first to see if you can “change your password,” at which
point the rep on the other end will cackle, “Change your password? Your
fingerprint is your password! You can’t change your fingerprint. Are you new
here? Are you new to life?? This is your first day, isn’t it?!” *click*
Picture the same scenario, except instead of chopping your finger off,
thieves do the old lift-your-fingerprint-from-a-glass trick and then manufacture
a fake finger with your fingerprint on it, subdue you, steal your phone, and
then download Herbie: Fully Loaded.
This is the future we’re about to enter, right? A bunch of people with
missing fingers and stolen phones.
Except it’s apparently not going to work. The new breed of fingerprint
sensors will require a live finger, according to Mary Branscombe over at CITEWorld.
She writes:
[L]ike the sensor in the iPhone 5S, the sensors that will be in laptops and keyboards and other phones can detect the ridge and valley pattern of your fingerprint not from the layer of dead skin on the outside of your finger (which a fake finger can easily replicate), but from the living layer of skin under the surface of your finger, using an RF signal. That only works on a live finger; not one that’s been severed from your body.This will protect you from thieves trying to chop off your finger when they mug you for your phone (assuming they’re tech-literate thieves, of course), as well as from people with fake fingers using the fingerprint they lifted from your phone screen.
This new breed of sensor is unlike the ones you may have used on previous
laptops, for instance (or the Motorola Atrix, if you owned that smartphone). There’s no
swiping involved this time around. Apple purchased fingerprint sensor maker
Authentec a while back, which used to make these swipe-style sensors, though
Branscombe points out, “Ironically, Apple might have helped speed up the switch
to the new style of fingerprint sensor in PCs by telling PC makers they could no
longer buy the old fingerprint sensors from Authentec after it bought the
company.”
Here’s hoping would be thieves get the memo that the tried and true finger
chop isn’t going to work. They’ll need to do things the old fashioned way: bully
you into unlocking your phone and downloading Herbie: Fully Loaded for
them.
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