
Amadeus breach exposes booking data at a growing list of Asian airlines
Singapore Airlines, Japan Airlines and Cathay Pacific have each reported exposed records after a stolen system-account login at the reservations provider
MADRID — A breach at Spanish travel-technology provider Amadeus has exposed passenger booking records at a growing number of airlines. Singapore Airlines said about 46,000 records were accessed. Japan Airlines reported roughly 92,000 customers affected and Cathay Pacific about 53,000 bookings. ANA has said about 37,800 customers were affected. Korean Air, Asiana and Malaysia Airlines have confirmed exposure without giving counts, and Qantas is checking its own bookings. Most records hold names, booking references and flight details. A smaller group also include passport numbers, phone numbers or frequent-flyer details. Cathay says the intruder used login credentials assigned to an Amadeus system account. Airlines put the access window at August 2023 to September 2026. Amadeus says it found no evidence that payment data was reached or that the flaw was used for ransomware. It has reset passwords and added monitoring. It has not said how many airlines are affected. Regulators in Hong Kong and South Korea are among those being notified.
Why it mattersOne compromised vendor account reached customer data across several carriers, which shows how concentrated third-party risk is in travel technology.












