A major global cyber attack which has disrupted computers at Russia's biggest oil company, Ukrainian banks and multinational firms has reached Australia.
The Cadbury Factory in Tasmania is among the businesses effected.
It's believed the issue has filtered down to Cadbury from their parent company Mondelz International, who were the original target of this arm of the attack.
The Huffington Post report that International law firm DLA Piper's Australian office was shut-down on Wednesday morning as the company dealt with "a serious global cyber incident".
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The rapidly spreading cyber extortion campaign underscored growing concerns that businesses have failed to secure their networks from increasingly aggressive hackers, who have shown they are capable of shutting down critical infrastructure and crippling corporate and government networks.
Microsoft said the virus could spread through a flaw that was patched in a security update in March.
"We are continuing to investigate and will take appropriate action to protect customers," a spokesman for the company said, adding that Microsoft antivirus software detects and removes it.
Russia and Ukraine were most affected by the thousands of attacks, according to security software maker Kaspersky Lab, with other victims spread across countries including Britain, France, Germany, Italy, Poland and the United States.
The total number of attacks is unknown.
Security experts said they expected the impact to be smaller than WannaCry since many computers had been patched with Windows updates in the wake of WannaCry last month to protect them against attacks using Eternal Blue code.