Authentication vs. authorization: What’s the difference?

This episode of Techsplainers explores the fundamental difference between authentication and authorization in cybersecurity. Authentication verifies who you are—using factors like passwords, security tokens, or biometrics—while authorization determines what you're allowed to do once your identity is confirmed. We examine how these complementary processes work, from simple password logins to sophisticated multi-factor and adaptive authentication systems. The discussion covers various authorization frameworks including role-based, attribute-based, mandatory, and discretionary access controls. As identity-based attacks are one of the most common attack vectors today, understanding how these systems work together has never been more important for defending organizations against credential theft and account abuse. Find more information at https://www.ibm.com/think/topics/authentication-vs-authorization Find more episodes at https://www.ibm.biz/techsplainers-podcast Narrated by Bryan Clark