NEW: EU cybersecurity agency ENISA says the airport disruptions across Europe this weekend were caused by a ransomware attack.
The attack targeted Collins Aerospace and its check-in system called Muse.

EU cyber agency confirms ransomware attack causing airport disruptions | TechCrunch
A cyberattack targeting Collins Aerospace, a provider of airport check-in systems, sparked delays and disrupted flights across Europe over the weekend.

TechCrunch (techcrunch.com)