Cyber attack in Australia: hackers leak medical records (insurers)
Hackers on Wednesday began leaking stolen sensitive medical records to a major Australian health insurance company that previously refused to pay a ransom demand.
Hackers on Wednesday began leaking sensitive medical records stolen from a major Australian health insurance company that previously refused to pay a ransom demand, the insurer said, expecting more leaks.
Medibank, one of Australia’s largest private health insurers, has told its investors and customers that a “sample” of data from its approximately 9.7 million customers has been published on a “dark web forum”.
Names, passport numbers, dates of birth, addresses and medical information are among the personal information posted anonymously Wednesday morning.
“The files appear to be a sample of data that we previously determined was accessed by the criminal,” the company said in a statement to the Australian Securities Exchange.
“We expect the criminal to continue posting files on the dark web,” she continued.
The leaked data was posted on a forum that cannot be found with regular browsers.
“We will continue to post partial data,” the hackers warned in the forum.
The company announced Monday that a cyberattack had allowed access to its customers’ names, dates of birth, addresses, phone numbers and emails.
An anonymous netizen said in a hacking blog on Tuesday that “the data (would) be released in 24 hours,” a message that was widely picked up by local media.
Medibank then urged its customers to be “vigilant” in the face of this “worrisome” threat, issued a day after the insurer refused to pay a ransom.
Cybercrime experts estimated that paying a ransom had only a “limited chance” of ensuring the return of stolen data, Medibank CEO David Koczkar said at the time, adding that it could encourage direct extortion of their customers.
The Medibank hack came after a September attack on the country’s second-biggest mobile operator, Optus, that leaked the personal information of around nine million Australians, nearly a third of the population.
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