Similarly, the US government has made only modest headway in pushing private industry, including pipeline companies, to strengthen cybersecurity defenses. Cybersecurity oversight is divided among an alphabet soup of agencies, hampering coordination. The Department of Homeland Security conducts “vulnerability assessments” for critical infrastructure, which includes pipelines.

It reviewed Colonial Pipeline in around 2013 as part of a study of places where a cyberattack might cause a catastrophe. The pipeline was deemed resilient, meaning that it could recover quickly, according to a former DHS official. The department did not respond to questions about any subsequent reviews.

Five years later, DHS created a pipeline cybersecurity initiative to identify weaknesses in pipeline computer systems and recommend strategies to address them. Participation is voluntary, and a person familiar with the initiative said that it is more useful for smaller companies with limited in-house IT expertise than for big ones like Colonial. The National Risk Management Center, which oversees the initiative, also grapples with other thorny issues such as election security.

Ransomware has skyrocketed since 2012, when the advent of Bitcoin made it hard to track or block payments. The criminals’ tactics have evolved from indiscriminate “spray and pray” campaigns seeking a few hundred dollars apiece to targeting specific businesses, government agencies and nonprofit groups with multimillion-dollar demands.

Attacks on energy businesses in particular have increased during the pandemic—not just in the US but in Canada, Latin America, and Europe. As the companies allowed employees to work from home, they relaxed some security controls, McLeod said.

Since 2019, numerous gangs have ratcheted up pressure with a technique known as “double extortion.” Upon entering a system, they steal sensitive data before launching ransomware that encodes the files and makes it…