I'm running an MacBook Pro Retina (Mid 2014) with macOS High Sierra (10.13.3).
Coincidentally, I found the key combination Control ⌃+Option ⌥+Shift ⇧+Power button that immediately turns the MacBook off. As soon as I press the buttons, the screen is black and the computer is off. It's like a kill switch.
What is that shortcut for and how is it called? Does it hurt my computer?
EDIT: Maybe it is related to the SMC Reset? https://support.apple.com/en-us/HT201295