Authentication is the process of checking and verifying whether an entity is actually who or what it claims to be. The user is typically recognized by their username, authentication methods are by presenting a credential of some kind (usually a password) and then matching it to the username. Most users are familiar with using a password to login, which is a "knowledge-based" type of authentication since it relies on something that one person should know without having to share knowledge with others. A protocol is considered strong when it has two factors, one of which is different from the other. Two-factor authentication is also short for (2FA)
Almost every Organizations recommend their users to enable Two-FactorAuthentication to properly protect their account information and data, especially in the world of cryptocurrency. Bank accounts tend to have Fraudulent protection or method for retrieving stolen assets, unfortunately cryptocurrency do not have these things, that is why they recommend we use Two-Factor authentication.