https://www.bleepingcomputer.com/news/security/new-actors-attack-industrial-control-systems-old-ones-mature/

Industrial control systems (ICS) across the world have become a larger target in 2019 as researchers discovered new threat actors attacking this sector while old ones have evolved and expanded their operations.

ICS security firm Dragos identified three new adversaries last year and an overall increase in the number of threats and their sophistication.