What we know about the Colonial Pipeline ransomware cyberattack

What we know about the Colonial Pipeline cyberattack. The latest on who is behind it, how it could impact gas prices and more.

A cybersecurity attack targeting operators of a major East Coast fuel pipeline has left the nation reeling, exposing the vulnerabilities of critical infrastructure to new threats while also leaving many Americans with more questions than answers. Colonial Pipeline said on Saturday that it was the victim of a cyberattack involving ransomware and had "proactively" halted all pipeline operations as a result. The 5,500-mile pipeline system transports approximately 45% of all fuel consumed on the East Coast, according to its website, and runs from Texas to New Jersey. President Joe Biden acknowledged the ransomware attack during remarks on Monday, saying his administration has been tracking the incident "extremely carefully" and that he has been "personally briefed every day" on it. Eric Goldstein, the executive assistant director for cybersecurity at the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency (CISA), told ABC News in an interview on Monday that Americans should not expect any "shortfalls" from the hack.