According to Al Jazeera, citing Bloomberg and a person familiar with the matter, the FBI currently does not believe that the communication outage causing nationwide ground stops for departing U.S. flights originated from a cyberattack or criminal activity. The source stated that investigators are examining whether a software update might have triggered the outage, though the exact cause has not yet been determined. This represents investigative progress cited by media from a source, rather than a final investigation conclusion officially released by the FBI.