Any two-factor authentication, verification, or one-time passcode
What is 2FA
SMS 2FA is a type of authentication often used next to the standard password during Two-Factor Authentication (2FA) or Multi-Factor Authentication (MFA). SMS 2FA involves sending a short one-time password (OTP) to the user via text message. The user must enter the one-time password into the log-in form to prove their identity and gain access to their account.
AGE Texting also offers Timed one-time passwords (TOTP) which generates a short passcode that is active for a specific number of minutes.
SMS-Based Two-Factor Authentication does not require your phone to be online, an advantage over many other authentication methods that require a stable Internet connection.
How does 2FA Work
User enters their password
User receives an SMS with one-time password
User enters their one-time password in the log-in form
User gains access