Air India urges passengers to web check-in after cyberattack disrupts European airportsThe airline has issued a travel advisory urging the passengers to complete online check-in before reaching the airport to avoid delays. Air India issues advisory as cyberattack disrupts check-in systemsNew Delhi: Air India has issued a travel advisory for passengers after a major cyberattack disrupted check-in and boarding operations at several European airports, including London’s Heathrow. In its advisory, the airline has urged the passengers to complete online check-in before reaching the airport to avoid delays. London Heathrow, Brussels, and Berlin airports reported long queues with passengers facing extended waiting times. Berlin, London Heathrow, and Brussels were among the major European airports whose operations were suspended.