Amadeus Breach Leaks Korean Air, Asiana Booking Data (finance.biggo.com)

Booking reference numbers for Korean Air and Asiana Airlines customers leaked through unauthorized access to a system account at Amadeus IT Group, the Spain-based reservation and ticketing provider both carriers use. Korean Air was notified on the night of the 20th and says the breach ran from August 2023 to September of this year, though the number of affected individuals and specific data items remain unconfirmed. Neither airline found evidence of direct intrusion into its own systems, and payment information is not believed to be among the leaked items.