Singapore Airlines Confirms Data Breach Affecting 46,000 Booking Records

Flytechnews | 4 November 2026

Singapore Airlines (SIA) has confirmed that approximately 46,000 passenger booking records may have been accessed without authorisation following a cybersecurity incident involving Amadeus, the global travel technology company that supports some of the airline’s reservation and booking processes.

The incident, disclosed on 3 November, exposed passenger information including names, booking reference numbers, travel itineraries and booking classes.

Singapore Airlines said that additional personal information may also have been accessed in approximately 620 booking records. This potentially included email addresses, telephone numbers, travel document details and KrisFlyer frequent-flyer membership numbers.

The airline stressed that its own information technology systems were not breached. Instead, the incident was confined to Amadeus’ platform, which provides technology services supporting certain airline reservation operations.

There is some reassurance for affected passengers. According to Singapore Airlines, Amadeus confirmed that bank account and credit card information were not exposed. The unauthorised access also did not result in changes to passenger bookings.

As a precaution, Singapore Airlines is contacting affected customers with upcoming travel arrangements to arrange changes to their booking reference numbers.

The airline has also informed the relevant authorities and apologised to customers affected by the incident.

Other international airlines affected

The cybersecurity incident has raised wider concerns across the global aviation industry, with several other airlines also reporting that customer information may have been compromised through the Amadeus platform.

Among the carriers reporting potential exposure are Cathay Pacific, Japan Airlines, Malaysia Airlines and South Korea’s Asiana Airlines.

The incident highlights the growing cybersecurity risks facing airlines as they increasingly depend on interconnected reservation platforms and third-party technology providers to manage passenger information and flight bookings.

For airlines, protecting customer information has become an increasingly important part of operational security, particularly as millions of passengers rely on digital booking systems when planning international travel.

Investigations into the incident are continuing.

Flytechnews will continue monitoring developments as more information becomes available.