In the past, a friend told me that if I wanted good security on my MacBook that I should create an EFI password. Does that still apply in 2017? I have been reading about some Thunderbolt 2 firmware hack that turns your mac into a "brick" and the article made it sound like an EFI password won't protect you. I am asking for my Retina MBP that currently runs Sierra and which has a removable hard-drive. Thanks.