Extensive disruptions in air traffic in the United States were caused by a technical fault and not as a result of a cyber attack.
According to Transportation Secretary Sean Duffy, the extensive disruptions in air traffic in the United States occurred due to a technical malfunction and not due to a cyber attack.
At a remote FAA facility, routine maintenance work was performed to replace a communication line. As the minister explained, the replacement may have been performed improperly, or a "defective router" may have been installed.