stations went temporarily dry and fuel prices soared, homeland security today ordered oil and gas companies to take immediate steps to guard against another cyberattack. designate a company cybersecurity coordinator who s available 24/7 review company operations and notify homeland security of any cyber vulnerabilities within 30 days. and immediately report and coordinate cyber incidents. companies that don t comply could be fined up to $7,000 a day ransomware is one of the greatest cybersecurity threats that we face in the united states. reporter: but it s the tsa that s in charge of pipeline cybersecurity. the former director of homeland cybersecurity, cisa, says tsa can t do it alone. we need additional support from other agencies like cisa, like the intelligence community and also the department of energy reporter: meanwhile, big oil is facing another potential threat shareholders at exxon and chevron determined to force those companies to more aggressively address