Read more about this in the fundamentals of cyber security study guide. These are known as the three factors of authentication and can be combined in any order to create a secure login to a system. something you have - swipe card, biometrics, any other physical identifying device.something you know - password, pin, secret answer to a question.something you are - username, bank account number, or anything that identifies the user uniquely.The factors of authentication can be broken down into three main groups: For networks that require high levels of security, this may include other factors. In a network, this is often done through inputting a username and password.

Whether the network is for home or business purposes, it is likely that sensitive data is held on one or more connected devices, and there are a number of ways that this can be protected.Īuthentication is the process of a user confirming that they are who they say they are on a computer system.

In order to access a network, it is important that the user has permission to see and use the data on the network.

Firewall in computer network