Two-Factor Authentication (2FA) is one of the most effective ways to prevent unauthorized access to your accounts. Even if a hacker discovers your password, they still won't be able to log in without the second factor.
What is 2FA?
2FA requires two different types of information to verify your identity. These are usually categorized as:
1. Something you know: Like your password or a PIN.
2. Something you have: Like a physical token, a smartphone, or a code sent to your email.
3. Something you are: Like your fingerprint or facial recognition.
Why You Need It
With billions of credentials leaked in data breaches every year, passwords are increasingly easy to guess or buy on the dark web. 2FA ensures that a password alone is not the keys to your kingdom.
Best Practices
- Use Authenticator Apps (like Google Authenticator or Authy) instead of SMS.
- Save your backup codes in a safe, offline location.
- Enable 2FA on your primary email account first, as it's often the gateway to all your other accounts.