Password Protecting Admin Control Panel

[Bow Walker]

Hello - My name is Dan and I own a small site, and I am definitely not "tech savvy".
I am wondering how to password protect the Admin Control {Panel so that I would be the only one able to go in there and affect changes.
Specifically, I want to keep my moderators from entering the Admin Control Panel.

Thank you for your help and patience.
Dan.
Password Protecting Admin Control Panel

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