Well nobody in the American LCN, as far as I know, has ever been charged or linked to such a crime. So the evidence says no, the Mafia is not involved.

And it's not like the American Mafia hang around the same circles as the "Mr. Robot" "hackerman" types. And I doubt Frank Cali would be inclined to put out an ad on Craigslist offering money to hack into the local police station computers.