The FBI is investigating whether a software update caused an FAA mass outage that led to a nationwide ground stop.

The FBI is investigating whether a software update caused an FAA mass outage that led to a nationwide ground stop.

The FBI does not believe the FAA's nationwide outage was caused by a cyberattack or criminal activity.

DHS says it cannot rule out artificial intelligence or a cyberattack as a cause of the FAA ground stop.

DHS says it is examining a new $875 million artificial intelligence traffic control system that has been rolled out nationwide as a possible cause of failures that lead to ground stops.

Microsoft says the FAA ground stop does not appear to be related to its services.