SMS login offers an added layer of security by verifying users through their mobile numbers, which are usually unique to individuals and not easily replicable. It ensures that the person logging in possesses the mobile device associated with the registered number, adding a physical possession element to the authentication process.
SMS login can be combined with the OTP concept, further enhancing security. It is fast and easy, requiring minimal effort from users. They simply receive a one-time code via SMS and enter it to gain access, making the login process swift and efficient.