Passengers queued for hours after "cyber-related disruption" hit automated check-in and baggage drop systems. Tobias Schwarz/AFP/Getty Images Reuters —

Several of Europe’s biggest airports faced more disruption on Monday after hackers knocked out automatic check-in systems provided by Collins Aerospace, owned by RTX, affecting dozens of flights and thousands of passengers since Friday.

The disruptions were caused by a cyberattack, the EU’s cybersecurity agency confirmed on Monday, highlighting the growing risks of such attacks to critical infrastructure and industries.

Law enforcement was involved to investigate, the agency ENISA said in a statement, without providing details on where the cyberattack originated from.

Governments and companies have been the targets of cyb

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