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.

A cyber attack was the furtherest thing from Vanessa Hudson’s mind, as she enjoyed her annual leave far away from the New South Wales’ “bomb cyclone” for the heatwave of Europe.

Australian airline Qantas says a data hack on Monday exposed the personal information of six million customers and it expects the amount stolen to be “significant.”