When it comes to the annoyances of digital life, typing in a million different passwords all the time is second only to trying to remember them all. What if your body could be the password? Biometric readers have been around for some time, but now they’re found in devices we carry around. Fingerprint readers on high-end phones and tablets can unlock their home screens—and an increasingly wide range of apps. And your finger is just the beginning. The coming year will bring 007-style gadgets that scan your eye, listen to your voice or just recognize your heartbeat.