What is a password most commonly used for?

A password is most commonly used for authenticating a user to a computer system. This process involves verifying the identity of a user trying to gain access to a system, application, or network. When a user enters a password, the system checks it against the stored password (which is usually hashed for security). If there’s a match, the user is granted access, confirming their identity and enabling them to use system resources, applications, or data securely.

This authentication process is crucial for maintaining the security of systems and protecting sensitive data from unauthorized access. Since passwords are personal identifiers that help establish trust in digital interactions, their primary function aligns closely with user authentication rather than tasks like encryption, storing information securely, or generating codes. Understanding this core function of passwords is essential for recognizing their role in cybersecurity practices.