Production at Cadbury's famous chocolate factory in Hobart has ground to a halt after its parent company was engulfed in the latest cyber attack sweeping the world.

The Aboriginal and Torres Strait Islander flags have been unfurled at an official ceremony at NSW Government House and will remain a permanent fixture in a symbolic gesture that is long overdue, the state's governor says.

A major global cyber attack is disrupting computers at Russia's biggest oil company, Ukrainian banks and multinational firms with a virus similar to the ransomware that last month infected more than 300,000 computers.

Google has been fined a record 2.42 billion euros (A$3.5 billion) for abusing its dominance of the online search market in a case that could be just the opening salvo by European regulators in an attempt to curb the tech company's clout.

Gold, silver and cash have been seized as police raided cannabis growing houses south of Adelaide.

A sugar tax would provide the most health benefits to low income groups without excessively punishing them in the hip pocket, Australian researchers say.

Three men have been charged with assaulting a police officer after an incident in far north Queensland which left a policeman unconscious and needing scans.

Melbourne Storm coach Craig Bellamy says Cameron Munster is made for the State of Origin arena and won't let Queensland down in next month's decider.

Canterbury's finals hopes could be extinguished by the time he gets back on the park but skipper James Graham says write them off at your own peril.

Facebook is deleting about 66,000 posts a week as the social media giant cracks down on what it considers to be hate speech.