Updated

US officials say an overloaded system running old equipment caused the longest ground stop since the September 11 attacks. They ruled out a cyber-attack and a Microsoft outage as the cause. The ground stop disrupted flights across the United States. The reporting did not give a full account of the duration or the number of flights affected. France 24 reported that the US homeland security chief confirmed there was 'no Microsoft link' to the ground stop. On the same Friday, Microsoft confirmed that its consumer products had fully recovered and business services were improving, ending a global outage that had disrupted Teams, Outlook, Copilot and other applications for over 24 hours.