The Qantas airline company announced Wednesday that data belonging to six million of its customers has been hacked.

Millions of Aussies have been impacted by the shock cyber hack on Qantas, which extracted sensitive customer data including names, emails, phone numbers, birth dates and frequent flyer numbers.

Australian airline Qantas said that a hacker made off with a trove of customers’ personal data including passenger names, emails, phone numbers, birth dates and frequent flyer numbers