Definition - What does Log Out mean?
Loging out means to end access to a computer system or a website. Logging out informs the computer or website that the current user wishes to end the login session.
Log out is also known as log off, sign off or sign out.
Techopedia explains Log Out
The period between the login and the logout is the duration of the login session, which is the period that a user can perform his/her actions. Logging out can be accomplished in two ways: by using the log-out option provided by an application or by the system, or by shutting down the computer or closing an application without explicitly logging out. Some websites automatically log out a user if the login session has become inactive for long periods. There are certain applications that provide auto logout and multi-application logouts.
Logging out helps prevent other users from accessing the system without verifying their credentials. It also helps protect the current user's access or prevent unauthorized actions on the current login session and is thus an important part of security. Logging out ensures that user access and user credentials are safe after the login session.