Operations at major European airports were disrupted over the weekend after a ransomware attack targeted Collins Aerospace’s Muse check-in and boarding platform. Airports affected include Heathrow, Brussels, Berlin, and Dublin.

The incident began on Friday, forcing airports to revert to manual check-in procedures. The resulting delays led to significant flight cancellations and extended queues. Brussels Airport alone canceled nearly half of its planned departures on Monday due to ongoing technical and security complications.

The European Union Agency for Cybersecurity (ENISA) confirmed that a ransomware attack by a third party was behind the disruptions. Law enforcement agencies are actively investigating the incident.

The cyberattack had an immediate effect on airline share prices. Shares of Lufthansa (TG:LHA), International Consolidated Airlines Group (LSE:IAG), Air France (EU:AF), EasyJet (LSE:EZJ), Wizz Air (LSE:WIZZ), Ryanair (LSE:0RYA), and TUI (TG:TUI1) fell between 0.5% and 1.3% as of 08:53 GMT.

Airports indicated that online and self-service check-in options were still functioning, but manual processing extended wait times. Authorities advised travelers to check flight statuses and use alternative check-in methods whenever possible.

This content is for informational purposes only and does not constitute financial, investment, or other professional advice. It should not be considered a recommendation to buy or sell any securities or financial instruments. All investments involve risk, including the potential loss of principal. Past performance is not indicative of future results. You should conduct your own research and consult with a qualified financial advisor before making any investment decisions.

This article was written by the editorial team at InvestorsHub/ADVFN and is provided for informational purposes only. In some cases, editorial staff may use artificial intelligence–based tools to assist in the research, drafting, or editing of content, under human review and oversight. This article does not constitute investment advice, a recommendation, or an offer to buy or sell any securities. The views expressed are based on publicly available information believed to be reliable at the time of publication, but accuracy or completeness is not guaranteed. Readers should conduct their own independent research and consult a qualified financial professional before making any investment decisions.