The general opinion is that they’re good for being used as ID Tokens or Access Tokens and that they’re secure – as the tokens are usually signed or even encrypted. … A JSON Web Token (JWT, pronounced “jot”) is a compact and url-safe way of passing a JSON message between two parties. It’s a standard, defined in RFC 7519.

Can JWT token be stolen?

What Happens if Your JSON Web Token is Stolen? In short: it’s bad, real bad. Because JWTs are used to identify the client, if one is stolen or compromised, an attacker has full access to the user’s account in the same way they would if the attacker had instead compromised the user’s username and password.

Can JWT be decoded?

A valid JWT can consist of just the header and payload sections. … By design, anyone can decode a JWT and read the contents of the header and payload sections. But we need access to the secret key used to create the signature to verify a token’s integrity.