Q: monitored

Please explain further. Monitored? By? Red light?

Please try to be more specific. Please read this article: Writing an effective Apple Support Communities question

Your question is too vague.

What makes you say your computer is being monitored? Is this suspicion? or a known fact?

Is your system part of a managed network where some company (or parental?) policy requires monitoring?

What red light are you referring to? do you mean there is some physical red light on your system somewhere? or are you using the term in a non-literal sense to mean you are concerned?

You're going to need to provide more details about the nature of your problem. What makes you think your computer is being monitored? What "red light" are you talking about?

If you believe you may have malware, you might want to consider running Malwarebytes

https://www.malwarebytes.com/antimalware/mac/

Etrecheck is also useful:

https://etrecheck.com/