What's this hole with a lock symbol on the back of my monitor? [duplicate]
When I inspected my monitor I found a hole with a lock symbol (pictured below).
What is this? What is the function of this hole?
My monitor is a Samsung Syncmaster SA100.
It's called a Kensington lock, or Kensington security slot, and it provides an attachment point for a cable to prevent your monitor from being moved or stolen.
from Wikipedia