Amazon Cognito has become a go-to service for developers seeking robust user identity and authentication solutions. Cognito simplifies building secure applications by offering easy user management, authentication, and authorization. With its ability to support millions of users and integrations with social identity providers (like Facebook and Google), Cognito is ideal for scalable, secure applications. Recent updates have focused on enhancing flexibility and security by adding Custom Claims to access tokens.
https://businesscompassllc.com/boosting-application-security-and-personalization-with-custom-claims-in-amazon-cognito/