5 ms·

Are any of these identifiable characteristics really that invariable? What if someone starts exercising a lot, or loses 200 pounds, or starts taking medication

• jrockway 17y ago
  As with fingerprints, your password is always the primary authentication method. The fingerprint / heartbeat authentication support is there as an alternative; to be "cool", take longer than typing your password, and make it easier for intruders to access your device.
• sesqu 17y ago
  On the plus side, it'd be like a regular heart exam. If you can't access your account, you might have a bigger problem.