OAuth 2.0 stands as a leading standard for secure delegated authorization, allowing users to grant access to their resources without sharing passwords, and is widely adopted by the industry. The standard includes various authorization flows to accommodate different use cases, and its security is enhanced through extensions like JAR (JWT-Secured Authorization Request), JARM (JWT-Secured Authorization Response Mode), and PAR (Pushed Authorization Request) which address vulnerabilities such as lack of confidentiality, integrity protection, and client authentication. Kong, a prominent API gateway, supports these OAuth 2.0 extensions, providing robust security measures for authorization flows, especially crucial for environments requiring high security like financial-grade APIs or Open Banking. By implementing these extensions, Kong ensures compliance with industry standards, protecting against attacks such as phishing, URI rewriting, and impersonation, thus securing the authorization processes for both users and organizations.