Data stolen from a major Australian health insurer that had earlier refused to pay ransomSydney: Hackers on Wednesday began leaking sensitive medical records stolen from a major Australian health insurer that had earlier refused to pay the group's ransom demand. Medibank told investors and customers that a "sample" of data from some 9.7 million clients had been posted on a "dark web forum". Names, birth dates, addresses, passport numbers and information on medical claims were among the sensitive personal data posted anonymously early Wednesday. Medibank said more leaks were likely.