In this articleRTXTravellers wait in Terminal 4 at Heathrow Airport on Sept. 20, 2025 after major European airports including Brussels, Berlin and London's Heathrow were hit by "cyber-related disruption."Justin Tallis | Afp | Getty ImagesDisruption at some European airports continued for a second day on Sunday after a cyberattack targeted check-in technology company Collins Aerospace.The U.K.'s largest airport, Heathrow, was among those affected, along with Berlin and Brussels airports.Brussels Airport said ...