what they and only they know – login & password, PIN, etc.).Two-factor authentication (also known as 2FA) is a method of verifying user identity in which the user is granted access only after successfully presenting two elements to the authentication mechanism: This means that stealing your credentials or picking them up via brute-force attacks is no longer a complicated task. What's more, statistics say that 65% of people use the same password, usually a simple password, everywhere. However, today, with the existing computing power, network attackers have the facility to test billions of password combinations in a second. Authentication with login credentials and passwords is known as a common approach for identifying users on the internet and accessing resources on the web.