NFC Security Key
3rd generation multi-protocol USB security key with NFC for mobile two factor authentication, browsers, and other apps. Delivers hardware security to your Android phone and tablet, as well as to your Windows, Mac, and Linux computers.
In a single device, the YubiKey NEO has both contact (USB) and contactless (NFC, MIFARE) communications. It supports one-time password, smart card functionality, including OpenPGP and PIV, and the emerging FIDO Alliance Universal 2nd Factor (U2F) protocol.