TechSpot published Using a U2F Key to Secure Your Google, Dropbox, and GitHub Accounts
A quote from the article:
Last week we discussed the basics of two-factor authentication (2FA) and we wanted to delve deeper into one of its methods that go beyond SMS and app-based authentication. The FIDO U2F keys act like secure pen drives you can use for two-factor authentication and the best part of all, they are less than $20.Using a U2F Key to Secure Your Google, Dropbox, and GitHub Accounts @ TechSpot