According to BBC reports, U.S. Transportation Secretary Sean Duffy stated that while contractor L3Harris was upgrading copper cables to fiber optics, a router under installation transmitted a massive volume of data to other air traffic control systems, triggering communication issues with aircraft and prompting the government to implement a safety ground stop. Duffy noted that investigations are ongoing to determine whether the incident resulted from contractor operational error or equipment failure. Currently, U.S. authorities do not suspect a cyberattack, and the head of the FAA also stated that no evidence of malicious activity or AI-related involvement has been found.