If you see the NFC logo on a Bluetooth device, that means you can tap your phone against the NFC tag embedded in the device to pair it to your phone immediately.

In the NFC, the San Francisco ... A conspiracy theory about Super Bowl logos predicts that it'll be the Ravens and 49ers playing for the title on Feb. 11. Here's the latest on the theory.

This works great for using a two-factor key with everything from Gmail to Facebook, and what’s even better is that most of the NFC 2FA keys double as USB keys, so you can still use them with ...