In one of the most disruptive cybersecurity incidents to take place in the United States, Georgia-based Colonial Pipeline announced late Friday that it was the victim of a cyberattack, later confirmed to be a ransomware attack. The company said it proactively took specific systems offline and halted all pipeline operations.
Colonial called in federal authorities and hired FireEye Mandiant to conduct an incident response investigation. On Sunday, the third day of its shutdown, Colonial said it was developing a system restart plan while keeping its four main oil lines offline. The company said it would bring its “full system back online only when we believe it is safe to do so, and in full compliance with the approval of all federal regulations.”