Your Think Your Computer System is Safe?

The Untold Story of NotPetya, the Most Devastating Cyberattack in History

An amazing story in Wired about several companies with backup plans and many employees dedicated to IT...who got owned in the worst way.

There are many lessons here. 

Backing up is important, and they were. It still took several months to get back up...and, they were lucky at that. If one of the sites hadn't been out with a power outage, they possible would never gotten back up. Lesson: The basic data of all the central routers also needs to be backed up.

They were using old versions of an OS...there are many reasons companies do this, usually because a piece of software hasn't been written for updated versions of the OS...