[solomatov]

>- Bitcoin mining that regular user can't detect

It makes very little sense to mine on anything other than ASICs.

[winstonewert]

Is that still true if someone else foots the power bill?

[sowbug]

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.

[floatboth]

Ethereum is mined on GPUs (that's why Radeons are out of stock everywhere all the time :D)