Medibank data leak threat
MEDIBANK DATA LEAK THREATENED BY CYBERCRIMINAL AS CLASS ACTION LAWSUITS LOOM
By Rhiana Whitson, Michael Janda and wires for ABC News Online
A cybercriminal individual or group demanding a ransom has threatened to release Medibank client data as Australia's largest health insurer faces possible class action over the hacking of sensitive information for 9.7 million current and former customers.
Medibank has confirmed almost 500,000 health claims were accessed and the personal details of former and current customers were exposed when an unnamed group hacked into its system weeks ago.
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UNSW cybersecurity expert, Professor Richard Buckland, said it is impossible to be sure if the threat is genuine.
"We can't know for sure that it is the hackers that have posted it, because no data was posted with it, but it looks very plausible," he told ABC News.
"It's exactly what we're expecting once they were told they weren't going to be paid the ransom.
"The next step for them in this business is to then release the data — if they don't release the data they're not able to make future ransom threats."
