According to Sean Diffie, the contractor made the transition from copper wire to fiber optics in an "incredibly old communications system." Work on the router began to curb other air control systems, which caused communication problems with aircraft and forced the closure of the airspace. The government is investigating whether the cause was the company's "competition" or faulty equipment. The cyber attack is not considered the cause, but the investigation continues. The shutdown was the longest since 9/11, with disruptions that could last several days. צילום: Alex Tai/Keystone Press Agency/Global Look Press.

According to Sean Diffie, the contractor made the transition from copper wire to fiber optics in an "incredibly old communications system." Work on the router began to curb other air control systems, which caused communication problems with aircraft and forced the closure of the airspace. The government is investigating whether the cause was the company's "competition" or faulty equipment. The cyber attack is not considered the cause, but the investigation continues. The shutdown was the longest since 9/11, with disruptions that could last several days. צילום: Alex Tai/Keystone Press Agency/Global Look Press.