To implement and validate JWTs securely in Python, you need to understand how JWTs work and use the PyJWT library. A JWT consists of three parts: the header, payload, and signature. The header specifies the algorithm used to sign the token, the payload contains the claims or data that the token is encoding, and the signature ensures the token's integrity and confirms it was issued by a trusted source. To work with JWTs in Python, you'll need to generate cryptographic keys, create a JWKS endpoint, handle key rotation and management, secure your private keys, and use asymmetric signing (RS256 or ES256). Always verify the signature when decoding JWTs, validate critical claims, use a JWKS endpoint if available, enforce the Bearer token format, do not store sensitive information in the token, and use HTTPS everywhere. Additionally, consider using WorkOS for authentication, SSO, and user identity, which provides a modern API for enterprise-ready authentication features and can take care of the heavy lifting.