Here's what's known and unknown about the hack at Colonial Pipeline

By Raphael Satter WASHINGTON (Reuters) - Ransom-seeking hackers have broken into Colonial Pipeline, prompting the company to shut one of America's major arteries for fuel delivery. Here is a look at what we know, and what we don't, about one of the most disruptive digital shakedown efforts to hit a U.S. company. WHO IS INVOLVED? Alpharetta, Georgia-based Colonial Pipeline and the U.S. government have both blamed ransomware for the massive outage, pointing the finger at cybercriminal gangs who routinely hold data and computer networks hostage in exchange for digital currency payments. There is ...