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ClosedHighNo fix needed

Collins Aerospace MUSE ransomware knocks out check-in at Heathrow, Brussels and Berlin

Collins Aerospace MUSE (airport check-in and boarding)

Ransomware hit RTX's Collins Aerospace MUSE passenger-processing software on September 19, 2025, breaking electronic check-in, bag drop and boarding at several European airports. Airports fell back to manual check-in and handwritten boarding passes; Brussels was still disrupted days later. ENISA confirmed it was ransomware.

Why this severity: Ransomware on a shared airport vendor; multi-day disruption

Started
Sep 19, 2025
Closed
Sep 24, 2025

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Affected

  • n/a

Fixed in

No fixed release yet

Timeline4

  1. Collins works on restoring software for affected airlines

    Source
  2. ENISA confirms third-party ransomware behind the disruption

    Source
  3. Disruption expected to stretch into Sunday; Brussels cancels flights

    Source
  4. MUSE outage begins; Heathrow, Brussels and Berlin switch to manual check-in

    Source
News & write-ups4

Notes & caveats

closedAt approximates recovery; some airports ran degraded longer.

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