Understanding What Two-Factor Authentication Is
Two-factor authentication, or 2FA, is a security method that requires two steps to log in. It adds an extra layer of protection beyond just a password.
How Two-Factor Authentication Works
After entering your password, you must verify your identity with a second step. This can be a code sent to your phone, an authentication app, or a physical security key.
Why 2FA Is More Secure
Even if someone steals your password, they cannot access your account without the second factor. This makes it much harder for attackers to break in.
Types of Verification
Common methods include SMS codes, app-generated codes, email verification, biometric scans, and hardware keys. Apps like Google Authenticator and Authy are widely used.
Where 2FA Is Used
Most major platforms support 2FA, including email services, banks, social networks, and online stores. Enabling it greatly increases your account security.
The Simple Takeaway
Two-factor authentication adds a second step to your login process. It protects your accounts by making sure only you can access them, even if your password is compromised.