Police have confirmed a Russian network with global affiliates was behind the hacking of customer data held by Australia's largest health insurer Medibank.

"We believe those responsible for the breach are in Russia," Australian Federal Police commissioner Reece Kershaw told reporters in Canberra on Friday.

"Our intelligence points to a group of loosely affiliated cyber criminals who are likely responsible for past significant breaches in countries across the world."

Some affiliates of the organisation may be operating in other countries.

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," Mr Kershaw 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.

"Australians are angry, distressed and seeking answers about the highly sensitive and deeply personal information that is being released by criminals," he said.

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

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

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.

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".

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.

"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.

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

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 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.

Almost 500,000 health claims have been stolen, along with personal information, after the group hacked into its system last month.

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

Lifeline 13 11 14

beyondblue 1300 22 4636

© AAP 2022

Prime Minister Anthony Albanese says he would use a one-on-one meeting with Chinese President Xi Jinping to press Australia's case for $20 billion of economic sanctions to be lifted.

Still looking to lock in a meeting on the sidelines of the G20 summit, Mr Albanese says he would welcome talks with China but would use them to try and have the sanctions removed.

As well as the G20 summit in Bali, the prime minister is attending two ASEAN-related meetings in Cambodia and the APEC summit in Thailand.

There has been no formal bilateral meeting between an Australian prime minister and Chinese president since 2016.

"We have some $20 billion of economic sanctions against Australia," Mr Albanese told reporters in Sydney on Friday.

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

"So I'm very hopeful we'll continue to put our case that these sanctions are not justified, that they need to be removed, but we will enter any discussions that take place without any pre-conditions."

Mr Albanese said he would "stand up for Australian values" while seeking greater cooperation with China.

Opposition foreign affairs spokesman Simon Birmingham said he hoped the meeting with Mr Xi was secured, but Mr Albanese needed to ensure he did not deviate from Australia's "strategic interest".

"The actions of China in terms of seeking to apply economic coercion through trade sanctions and others are deplorable and the test of meetings and dialogue as they occur will be whether we get outcomes," he told Sky News.

In Phnom Penh, Mr Albanese is expected to catch up with his Cambodian counterpart Prime Minister Hun Sen and attend the ASEAN-Australia summit.

The summit comes as Cambodia and Australia mark the 70th anniversary of their diplomatic relationship.

Jobs, economic growth and regional resilience are expected to be high on the agenda.

Next week, Mr Albanese will join leaders from the world's top economies at the G20 summit in Bali.

It will be the second time the prime minister has travelled to Indonesia since Labor won the federal election in May.

Indonesian President Joko Widodo has invited Mr Albanese and Indian Prime Minister Narendra Modi to deliver a keynote address at the Business 20 Summit.

Food security, energy and global health will be topics of discussion at the G20.

But the fallout from Russia's invasion of Ukraine and the state of the global economy is also set to be a major talking point.

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.

It will be their first face-to-face meeting since Mr Biden became president in January 2021.

The summits will be an opportunity for leaders to discuss the economic instability faced across the globe in the wake of the pandemic.

© AAP 2022

Australia's tradition of mateship and courage has been remembered more than a century after the end of World War I.

The country paused at 11am to mark Remembrance Day and commemorate the 103,000 Australians who lost their lives in wars and peacekeeping operations.

The national event at the Australian War Memorial in Canberra was the first to be held without COVID-19 social restrictions since 2019, attracting hundreds of people including veterans, their families and schoolchildren.

The Australian spirit of mateship and courage was lauded by former War Memorial chair Kerry Stokes, who during his keynote address recounted an SAS sergeant saying that "to let down your mates in combat would be worse than death".

"We now see that tradition passed down in civilian acts of courage, motivated by concern for others, from bushfires to floods to pandemics, to those other extremes which will also affect our country and rock our foundations," Mr Stokes said.

Previously known as Armistice Day to commemorate the signing of the peace agreement that ended World War I, Remembrance Day honours all Australians who lost their lives in conflicts.

East Timor veteran Anthony Williams said Remembrance Day meant "everything" to him.

Leading seaman Matthew Joseph played the didgeridoo for the service, and said being able to showcase his Indigenous culture was an "amazing opportunity".

"For me it's speaking to the spirits and helping them guide them back to where they come from," he said.

He said he had a proud family history of service and followed in his sister's footsteps to join the defence force.

NSW Governor Margaret Beazley led Prime Minister Anthony Albanese, veterans royal commissioner Peggy Brown and other dignitaries in the laying of wreaths at Sydney's Martin Place.

Rear Admiral Jonathan Earley, Commander Australian Fleet, said those killed in action had not died in vain.

"Their service in the direct defence of Australia reminds us of what matters: that whatever the cost the price of liberty is worth paying," he said.

Mr Albanese told reporters after the service it had been an honour to attend the ceremony.

"We must always remember the brave men and women who have defended our nation at our time of need, who have made the ultimate sacrifice," he said.

Victorian Governor Linda Dessau noted it was the first Remembrance Day since the death of Queen Elizabeth II.

"I think of her in 1940, as a 14-year-old girl, delivering her first public address on radio, to the young people affected by World War II," the governor said.

Opposition Leader Peter Dutton, who attended a ceremony in his Brisbane electorate, said it was a "simple, sacred and significant custom".

"We pay tribute to all Australians who have served in wars, conflicts and peacekeeping operations from Federation through to the present day," he said.

This year marked several significant milestones, including the 50th anniversary of the end of national service and 75 years of Australia's involvement in peacekeeping operations.

Red poppies, traditionally worn on Remembrance Day, lit up the sails of the Sydney Opera House at dawn and in the evening.

In Melbourne, bugle players were stationed at 16 CBD intersections to play the Last Post at 11am. Landmarks such as Federation Square, the MCG and Town Hall were lit in red.

© AAP 2022

Twitter's new owner Elon Musk has raised the possibility of the social media platform going bankrupt, capping a chaotic day that included a warning from a United States regulator and the departures of senior executives viewed as future leaders.

The billionaire told Twitter employees on a call that he could not rule out bankruptcy, Bloomberg News reported, two weeks after buying the company for $US44 billion ($A67 billion) - a deal that credit experts say has left Twitter's finances in a precarious position.

Two executives - Yoel Roth and Robin Wheeler - who moderated a Twitter Spaces chat with Musk on Wednesday as he tried to assuage advertisers' concerns have resigned, one person close to the matter told Reuters.

Roth and Wheeler did not immediately respond to requests for comment. Bloomberg and tech site Platformer reported the exits first.

Earlier on Thursday, Twitter's chief security officer Lea Kissner tweeted that she had quit.

Chief privacy officer Damien Kieran and chief compliance officer Marianne Fogarty also resigned, according to an internal message posted to Twitter's Slack messaging system seen by Reuters.

The US Federal Trade Commission said it was watching Twitter with "deep concern" after the privacy and compliance officers quit.

The resignations potentially put Twitter at risk of violating regulatory orders.

In his first meeting with all employees at Twitter on Thursday, Musk warned the company may lose billions of dollars next year, online media outlet The Information reported.

Twitter did not respond to requests for comment on a potential bankruptcy, the FTC warning or the departures.

Wheeler was the face of Twitter for advertising after Musk took over.

Musk, who ruthlessly moved to clean house after taking over Twitter for $US44 billion ($A67 billion) on October 27, has said the company was losing more than $US4 million ($A6.1 million) a day, largely because advertisers started fleeing once he took over.

Musk has saddled Twitter with $US13 billion ($A20 billion) in debt, on which it faces interest payments totalling close to $US1.2 billion ($A1.8 billion) in the next 12 months.

The payments exceed Twitter's most recently disclosed cash flow of $US1.1 billion ($A1.7 billion) as of the end of June.

Musk announced plans to cut half the company's workforce last week, promised to stop fake accounts and is charging $US8 ($A12) a month for the Twitter Blue service that will include a blue check verification.

"We are tracking recent developments at Twitter with deep concern," Douglas Farrar, the FTC's director of public affairs, told Reuters.

"No CEO or company is above the law and companies must follow our consent decrees. Our revised consent order gives us new tools to ensure compliance and we are prepared to use them," Farrar said.

In May, Twitter agreed to pay $US150 million ($A228 million) to settle allegations by the FTC it misused private information, including phone numbers, to target advertising to users after telling them the information was collected only for security reasons.

Twitter did not respond to a request for comment.

Musk sent his first email to Twitter employees on Thursday, saying remote work would no longer be allowed and that they would be expected in office for at least 40 hours per week, according to Bloomberg News.

© RAW 2022