Core Points - Brussels Airport announced the cancellation of approximately 10% of flights scheduled for September 24 due to technical issues caused by a cyberattack on an external service provider [1] - Travelers are advised to confirm their flight status before heading to the airport and to arrive on time, with specific recommendations for check-in times for Schengen and non-Schengen flights [1] - The cyberattack also affected other European airports, including Berlin Brandenburg Airport and London Heathrow Airport, leading to similar technical problems [1]