A cyberattack on Collins Aerospace, a provider of check-in and boarding systems, disrupted operations at major European airports including London’s Heathrow, Brussels, and Berlin on September 20. Automated systems went offline, causing flight delays and cancellations. Airports implemented manual check-in and boarding procedures while the provider works to resolve the issue. Frankfurt and Zurich airports were reportedly unaffected. Passengers are advised to confirm flight status with airlines before traveling.