IAM sets up the employee's account so they can log in and access the application with their credentials.
IGA makes sure that access requests go through the proper channels—meaning they need to be formally requested, approved by a manager, and reviewed regularly (like during those quarterly access checks). It also keeps things in check if an employee switches departments or leaves the company, making sure their access is updated or revoked quickly.
Identity Security keeps an eye on employee activity to spot anything unusual, such as logging in from different locations at the same time or accessing sensitive info at odd hours. If something seems off, it’ll trigger alerts or ask for extra verification when needed.