Airlines reverted to manual check-in since Friday after service provider hit by ‘cyber-related incident’

Passengers at London Heathrow airport and those in Brussels and Berlin faced another day of delays on Sunday after an alleged cyber-attack hit check-in desk software.

Airlines were forced to revert to manual check-in from Friday night after the alleged attack hit Collins Aerospace, which provides check-in desk technology to various airlines.

Airports urged customers to check the status of their flights before travelling and asked passengers to arrive no earlier than three hours before long-haul flights and two hours before shorter journeys.

Collins said on Saturday that it was dealing with a “cyber-related incident”. If confirmed as a hack it would join a long line of attacks that have hit major companies in recent months. The UK’s biggest automotive employer, Jaguar Land Rover, has been unable to produce any cars for three weeks because of a hack, while the British retailers Marks & Spencer and the Co-op were also hit by separate attacks earlier this year.