The software in question — Collins’ common-use MUSE platform — powers many airports’ passenger processing stacks, allowing airlines to share check-in desks, kiosks, and boarding infrastructure through a single backend. Collins confirmed that the disruption was the result of a “cyber-related incident,” but has not disclosed the type of attack. What is clear is that the cMUSE outage exposed just how fragile Europe’s airport IT stack has become. According to Collins’ own documentation, cMUSE supports web-based agent stations, kiosk fleets, and mobile check-in endpoints through a centralized management plane. It’s not yet clear how much of Collins’ cMUSE infrastructure went down, or how many airline DCS links were affected.