3rd Party Risk Management
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Critical Infrastructure Security
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Governance & Risk Management
Airports in Brussels, Berlin, and the UK and Ireland Impacted

Flight cancellations and delays lasting hours at several major European airports including London’s Heathrow on Saturday occurred after a cyberattack against a provider of check-in and boarding systems.
See Also: 9 Tips to Block Third-party Cyber Attacks
Hackers late Friday targeted Muse software developed by Collins Aerospace, an American aviation and defense technology company owned by publically-traded RTX. The software allows multiple airlines to share check-in desks and boarding gate positions. The company has in recent years touted an optional integration with Amazon Web Services cloud infrastructure.
The incident led to at least 29 flight cancellations at Heathrow – Europe’s busiest and the fourth most transited in the world – as well as Berlin Brandenburg and Brussels Airport, reported Reuters. By late Saturday, Dublin Airport also reported service disrupted tied to the hack.
“I’m aware of an incident affecting airline check-in and boarding, impacting flights at Heathrow and other European airports,” British Transport Secretary Heidi Alexander said. “I’m getting regular updates and monitoring the situation. If you’re flying at Heathrow today, check with your airline before traveling.” Heathrow in April inked a six-year renewal agreement with RTX to continue deploying Muse software in all four passenger terminals.
Heathrow Airport on Saturday advised passengers to check flight status before leaving home and to arrive at least three hours before international departures and two hours before domestic flights. Similar alert was made by Brussels Airport, which first disclosed the hack, initially characterizing it as a “technical issue.”
“The service provider is actively working on the problem and to solve it as soon as possible,” Brussels Airport officials said.
The disruptions forced both Brussels Airport and Berlin Brandenburg to revert to manual check-in using pen and paper, resulting in long wait times. Brussels Airport said delays and cancellations would likely continue into Sunday.
RTX did not immediately respond to request for comment. In a statement to The Guardian, the company acknowledged a “cyber-related disruption to Muse software in select airports.”
“We are actively working to resolve the issue and restore full functionality to our customers as quickly as possible,” a company spokesperson said. The impact is limited to “electronic customer check-in and baggage drop.”
A spokesperson for the U.K. National Cyber Security Centre told the BBC it is working with Collins Aerospace and affected airports.
The hack highlights the interdependency of global transportation IT systems and their weaknesses, said Darren Guccione, CEO and co-founder of Keeper Security. “Organizations relying on third-party systems need to ensure every access point is secured, every connection monitored, and no system is automatically trusted.”
