A widespread cyberattack has caused chaos across several major European airports, including Brussels, Heathrow, Berlin Brandenburg, and Dublin. The attack targeted Collins Aerospace’s MUSE software, which powers essential services such as check-in, baggage handling, and boarding systems.

With systems knocked offline, airports have resorted to manual check-in and boarding processes, resulting in long queues, delays, and cancellations. Brussels Airport has already urged airlines to cancel about half of their scheduled departures on Sunday to reduce congestion and avoid last-minute disruptions.

While some airports are reporting partial recovery, experts warn that the disruption is likely to continue through the weekend. Passengers traveling via Europe are advised to check their flight status directly with airlines, arrive early, and prepare for longer waiting times.

Authorities have not yet confirmed the source of the cyberattack, and investigations are ongoing. For now, travelers should expect continued operational challenges at affected airports until full digital systems are restored.