IF YOU WANT to keep your online accounts safe, adding two-factor authentication (2FA) is the single most important step you can take. While no security measure is 100 percent hackproof, 2FA is going to go a long way to locking down access to your important accounts.
As the name suggests, 2FA adds another level of authentication to the login process. It means you need something besides your username and password to get into your accountand with swaths of login credentials regularly published online, it's in your best interests to put that additional step in place.
