OTP stands for “one-time password” – an additional code that you have to enter after your main password. You may also see terms like HOTP or TOTP, which are simply different types of OTP but serve the same function;
2FA stands for “2-factor authentication .” This describes the list of austria whatsapp phone numbers broader process of having two separate steps to log in to your account (your master password + an OTP);
MFA stands for “multi-factor authentication.” This includes 2FA, but extends to authentication methods that involve more than two steps.
To enable OTPs, you'll need to go into each account's security settings and choose two-factor authentication (2FA). Note that while most services offer 2FA, not all do. 2FA is a crucial aspect of protecting your accounts, so you should avoid services that don't offer it.
Here are the steps you can follow to activate 2FA on your Facebook account:
Log in to your Facebook account.
Go to Settings & privacy > Settings .
Click Security & Login .
Under Two-Factor Authentication , click Edit .
Choose your preferred OTP method (e.g. SMS, app-based).
Follow the on-screen instructions to finish the setup.
Facebook requesting an OTP
Facebook requesting an OTP
If you have multiple Meta accounts, you may need to go to Account Center > Account Settings > Password & Security . Then select and turn on Two-Factor Authentication.
