Colonial Pipeline was shut down with worst-case scenario in mind, executives say

Charles Carmakal, chief technology officer of the cybersecurity firm Mandiant, which is working with Colonial, also addressed the House Committee on Homeland Security. In prepared remarks obtained by The Washington Post, Carmakal explained how industrial organizations try to wall off important physical systems from vulnerable online ones. Attacks on the physical systems themselves, while rare, could take longer to remedy.

Source: WP