Passwords can be guessed or stolen. With two-factor authentication, even if an attacker gets your password, it won’t be enough to sign into your account.
You can use two-factor authentication to add security to most online accounts. Many providers offer it as an option within your settings. You can also set up two-step verification to access your devices — laptops, tablets, smartphones, and even some game consoles.
What is two-factor authentication?
Your password is step or factor one. Step two locks in extra security. Common examples include:
- a code sent to your phone via SMS
- a physical token or app on your phone that generates a code
- a fingerprint scan or voice recognition.
How to set it up
Different sites do two-factor authentication in different ways, but it usually only takes a minute or so to set up. You’ll often find it in your account or security settings.
Once two-factor authentication is set up, you usually only have to authenticate yourself if you log into your account on a new device.
Check if your system enables two-factor authentication (external link) – twofactorauth.org
How to turn on two-factor authentication for popular sites (external link) – turnon2fa.com