Factors of Authentication
Authentication factors describe how a user proves their identity when logging in.
- Something you know – password, personal, PIN, or a pattern.
- Something you have – an ATM card, phone, or fob.
- Something you are – a fingerprint or a voice command.
Using two independent factors can make unauthorized access more difficult than using a password alone.
What Is Two-Factor Authentication?
Two-factor authentication, or 2FA, is an authentication process that adds a second factor to a password-based login.
The second factor makes the user provide a second form of authentication to verify your credentials. In simple words, the 2FA requires the user to have two types of credentials before being able to access an account.
Some services send a code by text message or email, while others use authenticator apps, hardware security keys, or passkeys. Text messages and email codes can be useful, but they generally provide weaker protection against phishing than security keys or passkeys.
What is an Authenticator App?
This type of app generates a six-digit random code that refreshes every 30 seconds.
These apps offer flexibility when you are traveling to a place without cellular service.
Popular apps mentioned include Authy, Google Authenticator, LastPass, and Microsoft Authenticator.
The Bottom Line
Two-factor authentication is an important step to take in order to protect your important accounts.
I know that it adds an extra step to your login process, but for now, we have to choose between convenience and security.
While adding 2FA is a great tool for an extra layer of security, remember that you should never reuse your password for other accounts. This is the key to keeping your accounts safe in the online world.