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Four men are wanted for a bitcoin scheme involving nearly $200,000 in fraudulent transactions that occurred last fall in Ontario, Manitoba and Alberta.

Calgary Police say officers received information in October 2018 about multiple fraudulent transactions made across the country that specifically targetted one Canadian bitcoin company.

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Police alleged 112 fraudulent transactions were made at bitcoin kiosks in seven cities during September, 2018.

Nearly half, 51, of the transactions allegedly occurred in Calgary. The remainder occurred in Toronto, Montreal, Ottawa, Hamilton, Winnipeg and Sherwood Park, Alta.

It is believed that the suspects were committing “double-spend” attacks, police said in a statement released Wednesday.

The men allegedly attended bitcoin kiosks, successfully withdrew money, then remotely cancelled their transactions before the bitcoin company processed the withdrawal.

The second suspect is believed to be responsible for transactions that occurred in Calgary.

The third suspect is believed to be responsible for transactions that occurred in Winnipeg.

And the fourth suspect is believed to be responsible for transactions that occurred in Sherwood Park.

Anyone with information about the identity or whereabouts of any of the four suspects is urged to call Calgary Police at 1-403-266-1234 or Crime Stoppers anonymously at 1-800-222-TIPS (8477).

cdoucette@postmedia.com

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