Secretary of Homeland Security of the United States: The disruption of airports has nothing to do with a cyber attack.
Minister of Internal Security, Markin Mullin:
Despite the declaration of a state of national emergency and the mobilization of all relevant organizations, so far no evidence of a cyber attack or penetration of aviation systems has been found.
This crisis endangered the national security of the United States, he saw the deterioration of the infrastructure and the relative failure of the air traffic control system as the main cause of this situation and asked Congress to allocate a special budget for the modernization of these systems.