Heathrow among major airports hit by delays after cyber attackHeathrow was among a number of major airports across Europe hit by delays after a suspected cyber attack that targeted a service provider for check-in and boarding systems.
Source: Heathrow among major airports hit by delays after cyber attack (https://news.sky.com/story/passengers-stranded-by-cyber-attack-shouted-at-by-staff-despite-insane-queues-for-manual-check-in-13434669)