I'm not talking about a miner. I'm talking about a wallet or some utility module. You'd wait until you have a big installed base then change your module to sile

I'm not talking about a miner. I'm talking about a wallet or some utility module. You'd wait until you have a big installed base then change your module to silently steal coinbase credentials. Wait a few weeks until you have enough of them and then own all the accounts at once. Something like that. The Bitcoin aspect of the module is just to target effectively.