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It said these attacks resulted in millions of dollars of ransom payments.
The statistics from Australia's very own government cybercrime initiative are a lot lower.
Philip Seltsikas, a cyber-security expert and associate professor from Sydney, told Veronica & Lewis there was no sure way of defending against ransomware.
He said there were probably a lot more computers infected than we know.
Professor Seltsikas described Matt's strategy as "super brave"."My own opinion is to not engage at all with the hackers.
One day in Melbourne, when the sun was out and the birds were singing, Matt opened an email and was greeted with a video of a man wanking.
The man was him."There I was in all my glory," he told triple j's Veronica & Lewis. A 'ransomware' program had infected his computer allowing the hackers to film him through the webcam. Now they wanted money."There was an email saying they were going to release footage to all my Facebook friends and people I worked with if I don't pay them money.""Initially I laughed."He wrote back. Matt may have been feeling very much alone, but in fact he was part of an emerging trend of ransomware attacks in Australia.
He told them to do their worst and release the footage. Exact statistics are difficult to come by, as many people who are attacked don't go to police or make their situation public.
But then they replied with a screenshot of his Facebook friends, and personal details from his website. Security software companies, who may have an interest in exaggerating the threat, say they have detected vast numbers of attacks.