Medibank data theft: hackers release records they claim are related to mental health and alcohol issues

He said the government was doing all all it could do to limit the impact of the data breach, and support people affected.

Medibank has confirmed details of almost 500,000 health claims have been stolen, along with personal information, after the group hacked into its system last month.

No credit card or banking details were accessed.

Koczkar said the data release was disgraceful and malicious and could discourage people from seeking medical care.

Australian federal police investigators are working with international agencies, as well as state and territory police.

The opposition cybersecurity spokesman, James Paterson, said anyone who is contacted by a person purporting to have access to their data should immediately report it to authorities.