Put it this way: once you factored in the price of the bus fare to get to the public library to borrow a terminal to check your giant botnet's bitcoin earnings, your criminal enterprise would be operating at a loss.
CPU mining hasn't been viable since 2011 when bitcoin difficulty was below 1,000,000, and today it's near 600,000,000,000.
CPU mining hasn't been viable since 2011 when bitcoin difficulty was below 1,000,000, and today it's near 600,000,000,000.