Colonial Pipeline CEO Joseph A. Blount Jr. was grilled by lawmakers Tuesday about the ransomware attack his company that caused a run on the nation's gasoline supply.

The Justice Department on Monday announced it has seized millions paid by Colonial Pipeline in a ransomware attack.

Fuel outages persist, and the national gas price average remains at its highest level in six years, even as the Colonial Pipeline has resumed operations.

Only 34 employees are responsible for securing 2.7 million miles of pipeline.

The Colonial Pipeline ransomware attack is just the latest in the past year of cyberattacks that have had detrimental impacts to the United States.

President Joe Biden on Thursday aimed to ease concerns from Americans over high gas prices and fuel shortages after the Colonial Pipeline cyberattack.

The cyber attackers that compromised Colonial Pipeline's systems demanded "millions" of dollars in ransom, sources briefed on the investigation told ABC News.

The shutdown had caused panic in many southeastern states.

Federal authorities have urged for calmness and against panic-buying.

Pipeline shutdown fuels panic buying, gas shortages, hike in prices