The Medibank hackers who stole deeply information of close to 10 million Australians have dumped what appears to be the entire stolen data set onto the dark web.

Along with the data dump, the hackers, believed to be Russian group Revil, wrote: “Happy Cyber Security Day!!! Added folder full. Case closed.”

According to the AFR, who viewed the data, the smallest of the files contains 50 spreadsheets each with hundreds or thousands of entries.

Medibank is aware of the breach, and said: “we are in the process of analysing the data, but the data released appears to be the data we believed the criminal stole”, which is a confusing statement, to say the least.

“While our investigation continues there are currently no signs that financial or banking data has been taken,” Medibank said.

“And the personal data stolen, in itself, is not sufficient to enable identity and financial fraud. The raw data we have analysed today so far is incomplete and hard to understand.”

Medibank CEO David Koczkar said, despite Revil’s message, this is far from “case closed.”

“We are remaining vigilant and are doing everything we can to ensure our customers are supported. It’s important everyone stays vigilant to any suspicious activity online or over the phone,” he said.

“Anyone who downloads this data from the dark web, which is more complicated than searching for information in a public internet forum and attempts to profit from it is committing a crime.”

This morning, Government Services Minister Bill Shorten addressed the breach from these “absolute criminal lowlifes” on ABC RN Breakfast.

“If people think that any government ID has been in any way breached or they’re aware of it, contact us,” Shorten said.

“When it comes to things like your Medicare card, we will replace it.”