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Fingerprints are passé. Use your heartbeat to unlock your phone

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On the laundry list of what smartphones do, its capability as a phone is fairly low on the list of why we carry them. Frankly, smartphones hold a lot of our personal information and we don’t want any of it falling into the wrong hands. Passwords and fingerprint scanner have stood as our most valiant efforts to keep unwanted eyes out of our computers and phones, but passwords can be hacked and (cover your eyes kids) fingers can be cut off. Well, how about using something truly unique to lockdown your information – something like your heartbeat?