JWT, or JSON Web Token, is a compact, URL-safe means of representing claims to be transferred between two parties. It is used to validate the authenticity of the client and is sent inHTTP requests as a JSON object. JWTs can encode user identity and privileges, which the server verifies to grant access to protected resources. References: The Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course provides in-depth knowledge on various technologies including security mechanisms like JWT