Factor Authentication (and Sync Your Codes Between Devices)
Factor Authentication (and Sync Your Codes Between Devices) by howtogeek.com
Strong passwords are not enough anymore: we recommend using two-factor authentication whenever possible. Ideally, that means using an app that generates authentication codes on your phone or a physical hardware token. We prefer Authy when it comes to authentication apps—it’s compatible with all sites that use Google Authenticator, but is more powerful and convenient.