In practice, this means a second step you perform to authenticate yourself after you enter a password. The Security Key NFC is a device for two-factor authentication (2FA). That might change in the future, and for now it does just about everything it's supposed to. Unfortunately, limited support on the iPhone and from other services reduces the utility of this product. It can even talk to your phone-a rare feature for a device this affordable. The Security Key NFC by Yubico aims to go beyond password-only security by adding hardware authentication in the form of a slim USB device, and at a fraction of the price. Unfortunately for everyone, we're stuck with passwords for the foreseeable future-despite their being bad and humans being very bad at them. Doesn't support other 2FA or encryption features.Limited by lack of support on mobile devices, especially iPhone.How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages.

Yubico fido security key nfc