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The Russian invasion of Ukraine and China's trade and security muscle-flexing will be key issues for Prime Minister Anthony Albanese as he embarks on a nine-day overseas trip.

Peace, stability and security in the Indo-Pacific will also be front of mind as he hits the ground running in a series of meetings with his fellow world leaders.

The prime minister touched down in Cambodia's capital Phnom Penh on Friday night to attend the East Asia Summit and an ASEAN-Australia meeting.

At the summit, Mr Albanese is expected to meet with the Ukrainian Foreign Minister Dmytro Kuleba.

The prime minister told reporters in Sydney the consequences of Russia's illegal invasion of Ukraine formed the backdrop of the summits.

"Not just for human rights and for the tragedies that are occurring on a day-by-day basis ... but it's having a global impact on the economy," he said.

"Inflation is rising here in Australia, like around the world, as a direct result of the Russian invasion of Ukraine, and the pressure that has put on global energy prices.

"Russia needs to get the message that it is isolated amongst those who support the international rule of law and it should withdraw."

Mr Albanese is also expected to meet with the summit's host Prime Minister Hun Sen and mark the 70th anniversary of the bilateral diplomatic relationship.

In the evening Mr Albanese will attend a gala hosted by his Cambodian counterpart.

He is also expected to meet with Vietnam Prime Minister Pham Minh Chinh and Prime Minister of Laos Phankham Viphavanh in person for the first time.

Mr Albanese said food security, climate change and "strategic competition in the region" were important topics for discussion.

Work continues behind the scenes on seeking a bilateral meeting with Chinese President Xi Jinping, who has not had a formal meeting with an Australian leader since Malcolm Turnbull in 2016.

"What I've said about China is that we want to cooperate where we can, but we will stand up for Australian values where we must," Mr Albanese said.

"There isn't a meeting at this stage locked in, but we obviously will be attending the same conferences ... and I would welcome a meeting."

Mr Albanese said China's $20 billion in trade sanctions was impacting not only Australian exporters but the Chinese people.

"That is not in Australia's interest in terms of our jobs and the economy, but it's also not in China's interest," he said.

"I'm very hopeful we'll continue to put our case that these sanctions are not justified, that they need to be removed."

Mr Albanese will head to Bali on Monday for the G20 summit before attending the APEC meeting in Bangkok.

While Russian President Vladimir Putin will not attend, Ukrainian President Volodymyr Zelenskiy is expected to take part virtually.

President Joe Biden will meet the Chinese president on Monday in Bali.

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Australia's federal police chief has put the Russian hackers behind the Medibank data breach on notice, warning they face extradition.

Commissioner Reece Kershaw confirmed on Friday afternoon a network of Russian criminals was behind the cyber attack on Australia's largest health insurer Medibank.

Mr Kershaw had a blunt message for the people responsible for the hack.

"We know who you are," he said.

"The AFP has some significant runs on the scoreboard when it comes to bringing overseas offenders back to Australia to face the justice system."

Mr Kershaw said the crime had the potential to impact millions of Australians and damage a significant Australian business.

"This cyber attack is an unacceptable attack on Australia and it deserves a response that matches the malicious and far-reaching consequences that this crime is causing," he said.

Mr Kershaw said talks would be held with Russian law enforcement about the individuals involved, who were known but would not be publicly named at this stage.

He emphasised Russia benefited from the intelligence sharing through Interpol "and with that comes responsibilities and accountabilities".

Opposition cyber security spokesman James Paterson said the disclosure opened up the possibility of sanctions under Australia's Magnitsky regime.

The regime, passed with bipartisan support in December 2021, enables the imposition of targeted financial sanctions and travel bans in response to serious corruption and significant cyber incidents.

Prime Minister Anthony Albanese earlier told reporters he was "disgusted by the perpetrators of this criminal act", and he authorised the AFP boss to disclose the information.

The hackers have since released more sensitive details of customers' medical records on the dark web, including data on abortions and alcohol issues.

It follows Medibank's refusal to pay a ransom for the data, with almost 500,000 health claims stolen, along with personal information.

Medibank has created a one-stop shop of mental health and other support services that can be accessed by affected customers via its website.

© AAP 2022

The source of the Medibank hack will be revealed by the Australian Federal Police commissioner as a global investigation continues.

The hackers had thumbed their noses at the government after being warned the toughest "cyber guns" in Australia are coming after them, releasing more sensitive details of customers' medical records on the dark web overnight.

AFP chief Reece Kershaw has scheduled a statement for 3.30pm AEDT on Friday about the data breach, which some experts have pinned on a Russian network.

Prime Minister Anthony Albanese told reporters on Friday the investigation had made progress.

"I am disgusted by the perpetrators of this criminal act and I've certainly authorised the AFP Commissioner later today to disclose where these attacks are coming from," he said.

"We know where they're coming from, we know who is responsible and we say they should be held to account."

The ransomware group added a file named "Boozy.csv" to the dark web, which appears to contain information related to alcohol issues after a data dump on Thursday named "abortions.csv".

"You telling that is disgusting (woof-woof), that we publish some data," they wrote on Friday in the blog seen by AAP.

"But we warned you. we always keep our word, if we wouldn't receive a ransom - we should post this data, because nobody will believe us in the future."

The group claimed on Thursday it had demanded a ransom of $US1 for each of Medibank's 9.7 million affected customers, for a total of $US9.7 million (almost $A15 million).

Medibank CEO David Koczkar said he expected the "disgraceful" release of customer data to continue each day.

"It's obvious the criminal is enjoying the notoriety," he said.

"The relentless nature of this tactic being used by the criminal is designed to cause distress and harm. These are real people behind this data and the misuse of their data is deplorable and may discourage them from seeking medical care."

Home Affairs Minister Clare O'Neil said she felt the pain of those affected by the two most recent file drops.

"If there was a damn thing that I could do to put a stop to this, I would do it," she told Nine's Today Show on Friday.

"There is an enormous amount of work that has gone into trying to stop harm from resulting from this, trying to wrap our arms around the victims of this horrible crime."

It's believed the hackers are using medical reference codes to sift through the data they stole to generate files on specific health issues.

The AFP and the Australian Signals Directorate were the "cyber guns" of the federal government and were working hard to disrupt the hackers, Ms O'Neil said.

The minister also stressed that Australian businesses must awaken to the urgency of the threat posed by hackers.

"We have been in a slumber about cybersecurity threats that face us," she said.

"We need to wake up from that slumber."

The first wave of files dropped on Wednesday included names, birthdates, addresses, email addresses, phone numbers, health claims information, Medicare numbers for Medibank's ahm customers, and passport numbers for international student clients.

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.

Medibank has created a one-stop shop of mental health and other support services that can be accessed by affected customers via its website.

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© AAP 2022