How old are those Macs in the graphics department? If more than a year or so, they might be vulnerable to a newly discovered exploit that can remotely overwrite the firmware and create a permanent backdoor. And that’s not good. It affects Macs that are older than mid-2014 and happens when they wake up from sleep mode. Read more about it here:
About The Author
Debra Littlejohn Shinder is a technology and security analyst and author specializing in identity, security and cybercrime, utilizing her past experience as a police officer and police academy/criminal justice instructor. She has written numerous books and articles for web and print publications and has been awarded the Microsoft MVP designation for fourteen years in a row.