Travel chaos continues across Europe as the fallout from a cyberattack on check-in systems at three major airports stretches into a second day. Thousands of passengers are facing flight delays, cancellations, and long queues as airport staff struggle to process travelers manually.

The attack, which targeted the check-in and baggage handling systems, began early Monday morning, crippling operations at airports in Paris, Frankfurt, and Amsterdam. While the airports' IT teams have been working around the clock to restore systems, significant disruptions remain.

The cause of the cyberattack is still under investigation, but initial reports suggest it may have been a sophisticated ransomware attack. Security experts warn that the aviation industry is an increasingly attractive target for cybercriminals, given the critical nature of its infrastructure and the potential for widespread disruption.

"Airports are particularly vulnerable because they rely on a complex web of interconnected systems," says cybersecurity analyst Emily Carter. "A single point of failure can have a cascading effect, as we're seeing now."

The economic impact of the disruptions is expected to be significant, with airlines, airports, and passengers all bearing the costs of delays and cancellations. The situation is further complicated by the peak summer travel season, with airports already operating at near capacity.

Passengers are advised to check with their airlines for the latest flight information and to arrive at the airport well in advance of their scheduled departure time. The disruption is expected to continue for at least another day as the affected airports work to fully restore their systems and clear the backlog of passengers.