Okay kiddo, you know how sometimes mom and dad check to make sure you brushed your teeth before bed? Well, imagine that a really smart person with computer skills does that same thing, but for a company's computer systems.
That smart person is called an IT auditor. Their job is to make sure that the company's computer systems are safe, secure, and working the way they should be. They do this by looking at all the different programs, databases, and other technical stuff that the company uses to make sure they are working correctly.
Just like how you have to clean your room sometimes, companies also have to clean up their computer systems. The IT auditor helps the company find any problems or issues that need to be fixed. This can help protect the company from hackers or other bad guys who want to steal important information.
So, in short, an IT audit is like a check-up for a company's computer systems. The IT auditor makes sure everything is safe, secure, and working properly so that the company doesn't have any problems or risks.