HONG KONG, CHINA - JULY 19: Travellers queue up at the check-in counters of the Hong Kong International Airport on July 19, 2024 in Hong Kong, China. A significant Microsoft outage impacted users globally, leading to widespread disruptions, including cancelled flights and disruptions at retailers globally. Airlines like American Airlines and Southwest Airlines reported difficulties with their systems, which rely on Microsoft services for operations. The outage affected check-in processes and other essential functions, causing frustration among travellers and lines to back up at many affected airports worldwide. (Photo by Anthony Kwan/Getty Images)