The following article has a discussion on a software feature that you'll -- hopefully -- never have to use on a Mac or Apple device: https://www.pcmag.com/how-to/how-to-secure-your-iphone-ipad-or-mac-with-lockdown-mode
I had to chuckle a bit when I noticed the article came from PC Magazine. Glad someone is looking out for us Mac users..
Jim Hamm