Stateless Authentication

Stateless authentication is a method where each time a user logs in, they receive a unique token—often called a digital key—that proves their identity. This token is stored on their device and sent with each request to access a service. The server doesn't keep track of past logins or store session data; instead, it verifies the token's validity each time. This makes the system scalable and efficient, as no server memory is needed to track user sessions, and the user remains authenticated as long as the token is valid.