The cyberattack targeting the personal data of customers with Qantas is the latest in a string of breaches affecting millions of Australians, as hackers target major companies and exploit weak spots in the systems they rely on.

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.

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