System and Technology
Authentication
Authentication is the process by which a system verifies whether a person or application attempting to sign in actually has the claimed identity. It uses credentials such as a username and password, a token, or another form of security evidence. It ensures that only authorised users can sign in; only afterwards do access rights and user roles determine which data and functions they may use. Authentication therefore protects against unauthorised access and is a key element of security, traceability and controlled system access. In day-to-day operations, it ensures that only authorised employees can view sensitive information, process documents or change settings.
