Hackers hit Norsk Hydro with ransomware
The breach last March would ultimately affect all 35,000 Norsk Hydro employees across 40 countries, locking the files on thousands of servers and PCs. The financial impact would eventually approach $71 million.
All of that damage had been set in motion three months earlier when one employee unknowingly opened an infected email from a trusted customer. That allowed hackers to invade the IT infrastructure and covertly plant their virus.
This is kinda fluffy, but somewhat interesting.