The FBI does not believe a cyber attack or criminality caused the air traffic control communications failure behind the nationwide US ground stop, Bloomberg reports, citing one person familiar with the matter.
The same person told Bloomberg that one area of inquiry is whether a software update caused the outage. The report rests on a single source, and no official body has confirmed it.
This is the first report to name the FBI as examining the cause. It is consistent with earlier accounts. A federal official told MS NOW that a software update caused the stop. CBS News reported that an update to a communications network operated by L3Harris caused the system to reboot and crash. A Justice Department source separately told MS NOW that officials were not tracking any potential connection to terrorism.
SecurityWeek says no official root cause has been announced. None of the accounts of the cause has been independently checked.