September 21,2025 | SKY LINK TIMES
A large-scale cyberattack on a third-party service provider disrupted check-in and boarding systems at several major European airports on Saturday, leading to widespread flight delays and cancellations. The affected airports include London Heathrow, Brussels, and Berlin, according to Reuters.

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What Happened?
The disruption was traced back to Collins Aerospace, a major provider of airline check-in and boarding software. The company confirmed that its MUSE system had suffered a “cyber-related disruption” impacting electronic check-in, baggage drop, and boarding processes across several airports.
A Collins Aerospace spokesperson said they were “actively working to resolve the issue and restore full functionality as quickly as possible.” While manual check-ins remain possible, the disruption has significantly slowed down operations.
Brussels Airport: 10 Flights Cancelled, 17 Delayed
At Brussels Airport, the impact was immediate. Officials confirmed that by 10:30 a.m. local time, 10 departing flights were cancelled and 17 others delayed by more than an hour.
“This has a large impact on the flight schedule and will unfortunately cause delays and cancellations,” the airport said in a statement, adding that manual check-ins were causing long queues.
Heathrow and Berlin Also Hit
London’s Heathrow Airport reported similar issues, initially describing the situation as a “technical issue.” However, officials later confirmed the problem stemmed from their third-party supplier, Collins Aerospace. Passengers were advised to check with their airlines before heading to the airport.
Meanwhile, Berlin Airport posted a notice warning travelers of “longer waiting times at check-in,” also citing a technical issue with its system provider.
Not All Airports Affected
Despite the widespread impact, Frankfurt Airport and Zurich Airport confirmed they were not affected by the disruption. Zurich’s operations control center noted that the airport was “closely monitoring the situation” while maintaining regular operations.
How Long Will the Disruption Last?
The exact scale of the cyberattack remains unclear. Authorities have not disclosed whether sensitive passenger data was compromised. Collins Aerospace stated that the issue was “limited to electronic customer check-in and baggage drop,” and emphasized that airlines could continue operations using manual processes.
However, airports warned passengers to expect long queues, longer waiting times, and possible cancellations throughout the day.
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What Passengers Should Do
Airports and airlines are urging travelers to:
1.Check flight status before leaving for the airport.
2.Arrive early, as manual check-ins take longer.
3.Allow extra time for baggage drop and boarding.
Final Word
The incident highlights the growing risks of cybersecurity threats in global aviation. With digital systems integral to airport operations, disruptions of this scale can quickly ripple across multiple countries, leaving thousands of passengers stranded.
For now, the focus remains on restoring systems and minimizing travel chaos as airports across Europe brace for further delays.
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