A software flaw in Mac OS 10.13.1 High Sierra allows any user to log into a Mac system (running that software) using the user name “root”. This root account grants the individual access to to ALL other accounts on the system where they can then change credentials including log in passwords for other personal accounts. There is a security update from Apple on the App Store. Update your MacBooks, iMacs and other Mac systems running High Sierra. The purpose of this video is to inform users so their systems don’t become compromised or remain susceptible.
I have done this to my Mac; it took about ten mins.