Collins Aerospace, a subsidiary of RTX, said on Wednesday it is working to restore its passenger processing software after a cyber intrusion disrupted airline operations across several European airports.
The company’s MUSE system—which supports passenger check-in, baggage handling, and boarding—was knocked offline on September 19 in what has been identified as a ransomware attack. The disruption caused widespread travel delays and cancellations.
British police confirmed on Wednesday that they had arrested a man in connection with the incident, though investigations remain ongoing.
Berlin airport, one of the affected hubs, said it was still struggling to fully restore its check-in and baggage systems and warned travelers to expect further delays and cancellations.
The Collins Aerospace hack is the latest in a string of cyberattacks in Europe that have triggered significant real-world consequences, underscoring the vulnerability of critical infrastructure to digital threats.