WASHINGTON, DC – MAY 11: Brandon Wales, Acting Director Cybersecurity and Information Security Agency at U.S. Department of Homeland Security and Ryan Higgins, Chief Information Security Officer at U.S. Department of Commerce, are sworn in at a Senate Homeland Security and Governmental Affairs Committee hearing (Photo by Tasos Katopodis-Pool/Getty Images)
Digital systems and internet networks belonging to U.S. oil and gas companies have increasingly come under attack from hackers in recent years, experts tell CyberScoop.