Cyber Attack Targets Belgian Brussels Airport, Paralyzing Checkin-Boarding System.

JAKARTA - Brussels International Airport in Belgium canceled half of the scheduled flights on Sunday, September 21 after cyberattacks paralyzed the checkin and boarding systems.

"There was a cyberattack on Friday night, September 19, against service providers of check-in and boarding systems affecting several airports in Europe, including at Brussels Airport," the airport administration said in a statement on Saturday, September 20 local time, quoted by Sputnik.

"This means that currently only check-in and manual boarding are available... This has a major impact on flight schedules and unfortunately will cause flight delays and cancellations," the statement continued.

The airport warned that passenger check-in issues could continue until Monday, September 22, 2025.

Cyberattacks on Friday evening targeted US defense and aviation technology company Collins Aerospace, which provides passenger check-in and boarding systems at European airports, including in Brussels, Berlin, and London.

Collins Aerospace confirmed the attack targeted his MUSE software, which is used to check-in passengers and drop baggage at several airports, according to a British newspaper report, The Independent.

The impact is limited to electronic check-in and baggage drop, and can be overcome with manual surgery, the company said in an official statement.

The technology company added that it is working to restore full operational functionality as quickly as possible.