Being able to verify that the users are actual users, and being able to help them have better security, is an important factor for everyone, and that's where two-factor authentication comes in handy.
Two-factor authentication is a more secure way of logging in to a website. In addition to entering a password online, a user has to enter a random verification code generated at login time. This combination of passwords makes it easier to safeguard your applications.
Two-factor authentication is used in:
More and more big web services are starting to activate two-factor ...