Michelle Smith
C. Kirkpatrick
Cybersecurity
14 September 2025
CIA Triad: Authentication vs Authorization

Authentication and authorization deal with security and data protection, but they have different functions within the security process. While authentication verifies a user, authorization grants access to the user.
Introduction
In cybersecurity, protection is guaranteed through a series of methods, two common methods being authentication and authorization. Authentication and authorization are steps within the verification process. While they both factor into the protection of data and work with each other, they have different functions that strengthen the security. This paper covers the difference between authentication and authorization and how their functions help strengthen the verification process.
Authentication
Authentication is the process of verifying a user with information only they would know (Skillweed). The system compares the user’s answers to saved files in order to confirm their identity. A few common methods are one-time pins, passwords, and fingerprints (Kosinski). Unlocking a phone or opening a bank account are two ways authentication is used in everyday life. Authentication is needed to ensure that important data is not accessible to anyone but the user.
Authorization
Authorization allows the user to see data based on their position or rank within a company. This step focuses on the protection of sensitive data and decides what the user can do with that data. One method of authorization is role-based access control, which grants the user access based on their role in the company (Kosinski). A few common ways authorization is used in daily life is when someone logs into their email or creates a shared document. Without authorization, an untrustworthy user could access sensitive information whenever they wanted to.
Relationship Between Authentication and Authorization
Despite the differences, authentication and authorization need each other to create a secure data protection system. These processes are used to combat cyberattacks towards a company or an individual. Authentication protects the user’s personal information and passwords. If an attack gets through authentication, the authorization stops the attack from getting into sensitive information. These processes strengthen each other as long as a threat exists (Kosinski).
Conclusion
Authentication verifies the identity, and authorization controls data’s accessibility. Despite the differences, the two strengthen each other while ensuring data protection. Companies and users rely on these processes to keep their data safe from cyberattacks and threats.