ActingConsumer ProtectionCommissionerGary Newcombe saidNigerian criminals used Facebook profilesalong with a business website to create McCarty, an interior designer originally from Scotland but now living in Australia.
The man posing as McCarty convinced the Perth-based woman that he needed the money for his business.
Consumer Protection and police teams after the investigations found that there were several other victims in New South Wales, including one woman who lost 50,000 dollars
While some money went to the US or Dubai, where 'Allan McCarty' was supposedly working, funds appeared to have been funnelled through 'mule' accounts to West Africa.
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Newcombe said the real man in the photographs had been identified but attempts to contact him had been fruitless.
"We know that the man in the photographs lives in California," he said.
"He has low security and privacy settings on his Facebook profile, making it easy for scammers to steal his pictures. In real life this man appears to have been battling cancer and we suspect the fraudsters have picked him for that reason - they can potentially use as an excuse not to meet the victims in person and to seek financial assistance."