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The operator of the system, Colonial Pipeline, said it had shut down its 5,500 miles of pipeline, which takes refined gasoline and jet fuel along the East Coast.
A cyberattack forced the shutdown of one of the largest pipelines in the United States, in what appeared to be a significant attempt to disrupt vulnerable energy infrastructure. The pipeline carries refined gasoline and jet fuel up the East Coast from Texas to New York.
The operator of the system, Colonial Pipeline, said in a statement late Friday that it had shut down its 5,500 miles of pipeline, which it says carries 45 percent of the East Coast’s fuel supplies, in an effort to contain the attack on its computer networks. Earlier Friday, there were disruptions along the pipeline, but it was unclear whether that was a direct result of the attack.
Colonial’s pipeline transports 2.5 million barrels each day, taking refined gasoline, diesel fuel, and jet fuel from the Gulf Coast up to New York Harbor and New York’s major airports. Most of that goes into major storage tanks, and with energy use depressed by the pandemic, the attack was unlikely to cause any immediate disruptions.
In the statement, the company said that it learned on Friday that it “was the victim of a cybersecurity attack,” but it provided no details. Such an attack could involve malware that shut down its operations or ransomware demanding payment to unlock computer files or systems.
“In response, we proactively took certain systems offline to contain the threat, which has temporarily halted all pipeline operations, and affected some of our I.T. operations,” the company said, referring to information technology systems.
It said it had contacted law enforcement and other federal agencies. The F.B.I. leads such investigations, but the critical infrastructure is the responsibility of the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency.
The breach comes just months after two major attacks on American computer networks — the SolarWinds intrusion by Russia’s main intelligence service, and another against a Microsoft email service that has been attributed to Chinese hackers — that have illustrated the vulnerability of the networks on which the government and corporations rely.
While both of those attacks appeared aimed, at least initially, on the theft of emails and other data, the nature of the intrusions created “back doors” that experts say could ultimately enable attacks on physical infrastructure. So far, neither effort is thought to have led to anything other than data theft.
The Biden administration announced sanctions against Russia last month for SolarWinds and is expected to issue an executive order in the coming days that would take steps to secure critical infrastructure, including requiring enhanced security for vendors providing services to the federal government.
The United States has long warned that Russia has implanted malicious code in the electric utility networks, and the United States responded several years ago by putting similar code into the Russian grid.
But actual attacks on energy systems are rare. About a decade ago, Iran was blamed for an attack on the computer systems of Saudi Aramco, one of the world’s largest producers, which destroyed 30,000 computers. That attack, which appeared to be in response to the American-Israeli attack on Iran’s nuclear centrifuges, did not affect operations.
Another attack on a Saudi petrochemical plant in 2017 nearly set off a major industrial disaster. But it was shut down quickly, and investigators later attributed it to Russian hackers. This year, someone briefly took over control of a water treatment plan in a small Florida city, in what appeared to be an effort to poison the supply, but the attempt was quickly halted.
