Overview

• A cyberattack on Collins Aerospace’s MUSE software disrupted electronic check-in and baggage dispatch at several airports, notably Brussels, London Heathrow and Berlin.
• Airports reverted to manual processing, producing long queues, delays and cancellations, and Eurocontrol asked for large reductions in Heathrow flights during a defined weekend window.
• Brussels said it requested airlines cancel nearly 140 Monday departures after weekend disruptions, maintaining roughly 85% of operations by using extra staff and workarounds at kiosks and automated bag drop.
• RTX, Collins’ parent, said the impact is limited to passenger processing and is being mitigated manually as it works to deliver a secured software update, and investigators have not attributed the attack.
• The impact was uneven across Europe, with many airports reporting normal operations, including all Spanish airports per AENA, and some German airports switching to backup systems to avoid major disruption.