The Medibank hackers claim they demanded a $US9.7 million ($15.09 million) ransom not to release stolen customer information, as the health insurer blasted their latest data dump as a "malicious" attack on vulnerable Australians.
In a chilling message posted on the dark web overnight, the hackers released sensitive details of customers' medical procedures and said it had demanded $US1 ($1.60) for each of Medibank's 9.7 million customers.
