Security Keys: The Most Secure Way to Log In (opens in new tab)

We discussed some weeks ago that using an authenticator app is a more secure method of multi-factor authentication than SMS or email. An even more secure option is using a physical security key, such as a YubiKey. For anybody unfamiliar with security keys, they are small devices, which you insert into a USB port (or in some cases tap against your mobile device) to verify your identity when logging in.