In this articleRTX your favorite stocksCREATE FREE ACCOUNTTravellers wait in Terminal 4 at Heathrow Airport on Sept.
20, 2025 after major European airports including Brussels, Berlin and London's Heathrow were hit by "cyber-related disruption."Justin Tallis | Afp | Getty ImagesDisruption at some European airports continued for a second day on Sunday after a cyberattack targeted check-in nology company Collins Aerospace.The U.K.'s largest airport, Heathrow, was among those affected, along with Berlin and Brussels airports.Brussels Airport said it expected heavy disruption and flight cancellations into Sunday as a result of the cyberattack.What happened?Collins Aerospace "vides check-in and boarding systems for several airlines across multiple airports globally," Heathrow Airport said in a post on X Saturday.Collins' parent company RTX said in a statement to Reuters that it was aware of "cyber-related disruption" to its MUSE software."The impact is limited to electronic customer check-in and baggage drop and can be mitigated with manual check-in operations," RTX said in a statement ed to Reuters.
It added that it was looking to resolve the issue as soon as possible.CNBC has ed RTX for and is awaiting a response.Which airports are affected?Aviation analytics vider Cirium told CNBC that 29 departures and arrivals were cancelled across Heathrow, Berlin Brandenburg and Brussels as of 12:30 p.m.
London time Saturday.All three airports issued d statements Sunday.Heathrow said it was working to "resolve and recover" ing the Collins outage that impacted check-in.Passengers continue to wait at the Brussels Airport as European airports are experiencing disruptions due to a cyberattack on the check-in and boarding system in Brussels, Belgium on Sept.
20, 2025. Anadolu | Anadolu | Getty Images"We apologise to those who have faced delays, but by working together with airlines, the vast majority of flights have continued to operate," it said on X.
"We encourage passengers to check the of their flight before travelling to Heathrow and to arrive no earlier than three hours for long-haul flights and two hours for short-haul."Brussels said on its website Sunday that the cyberattack was having "a large impact on the flight schedule and unfortunately causes delays and cancellations of flights." It advised travelers to check their flight before leaving for the airport.Berlin warned travelers of longer waiting times as a result of the "systems outage at a service vider."Dublin Airport was also affected but said it expects to operate a full schedule Sunday."Some airlines in Terminal 2 are continuing to use manual workarounds to generate bag and boarding passes.
This means that the check-in and bag drop cesses may take slightly longer than normal," the airport said on X.
in a line of cyberattacksThe attack on Collins Aerospace is the in a slew of cybersecurity breaches to have made the headlines.Jaguar Land Rover said last week that it was extending a pause in duction until Sept.
24 ing a cyberattack.
"We have taken this decision as our forensic investigation of the cyber incident continues, and as we consider the different stages of the controlled restart of our global operations, which will take time," the company said in a statement.While British retailer Marks & Spencer earlier this year said a recent cyberattack, which left food shelves bare and brought online sales to a standstill, would wipe out almost one-third of its annual fits.However, Charlotte Wilson, head of enterprise at cybersecurity firm Check Point, noted that the aviation industry was a particularly target for cybercriminals given its reliance on d digital systems."These attacks often strike through the supply chain, exploiting third-party platforms that are used by multiple airlines and airports at once," she said in an ed statement.
"When one vendor is commised, the ripple effect can be immediate and far-reaching, causing widespread disruption across borders."To imve resiliency, she said aviation companies should ensure software systems are regularly d and well-tested backup systems are in place.
She also called for better information-sharing between the nology viders, airlines and governments."Cyberattacks rarely stop at national borders, so the faster one country can identify and report an attack, the faster others can take action to contain it," she said.
"A joined-up defence will be far more effective than siloed responses."