The suspected cyber attack affecting several international airports could be a ‘test’ for a far bigger sabotage, an expert has said.

Several airports, including Heathrow and Brussels, were plunged into chaos following a ‘cyber issue’ relating to check in and boarding systems on Saturday.

A large part of Dublin airport was also evacuated on Saturday because of concerns over safety.

The issue involved a software called Muse, provided by Collins Aerospace, which is used by airlines at shared check in desks, boarding gates and other infrastructure.

Carriers were forced to turn to manual systems to process passengers amid the ongoing chaos.

But an expert has suggested that given Muse is an ‘industry standard’ used across some 150 airports worldwide, criminals could be using the current dis

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