Qantas says it will soon be able to alert customers to specific data stolen in this week’s cyberattack. “We are aware of reports of scammers impersonating Qantas,” the airline said this morning. “We recommend customers remain alert for unusual communications claiming to be from Qantas or requesting personal information or passwords.

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

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.”