An American Airlines plane lands at La Guardia International Airport one day after a global IT outage, in New York, on July 20, 2024. Planes were gradually taking off again Saturday after global airlines, banks and media were thrown into turmoil by one of the biggest IT crashes in recent years, caused by an update to an antivirus program. Passenger crowds had swelled at airports on July 19 as dozens of flights were cancelled after an update to a program operating on Microsoft Windows crashed systems worldwide. (Photo by Kena Betancur / AFP) (Photo by KENA BETANCUR/AFP via Getty Images)