On June 22, it was reported that President Trump had approved cyber attacks that disabled IRGC computer systems used to control rocket and missile launches the night of the drone-downing. The cyber strikes were handled by U.S. Cyber Command in conjunction with U.S. Central Command. It represented the first offensive show of force since Cyber Command was elevated to a full combatant command in May 2019. Also on June 22, the U.S. Department of Homeland Security issued a warning to U.S. industries that Iran is stepping up cyber attacks of critical industries—particularly oil, gas and other energy sectors—and government agencies, and has the potential to disrupt or destroy systems.