Digital NFC tattoo turns your body into a passcode to quickly unlock Moto X

If you're the type that foregoes passcodes on your phone in favor of the convenience of quickly turning on the device and getting to what you need to do, then the digital tattoo created for the Moto X will help to combine convenience and security. This way, you can still lock your phone, but thanks to the NFC coils within the digital tattoo, you can tap your Moto X against the tattoo and your phone will unlock faster than you can utter "open sesame."

source: androidcentral