I don't think this needs to be covert anyway. Think of the damage full doxxing could do to Russian government officials, releasing bank accounts, passwords, Russian equivalent of Social Security Numbers, etc. They need to up this and go further down the chain and target governors and mayors, etc. too.
This election cycle is turning you into a warmonger. We should have a solid response against Russia's cyber attacks, like what Obama is doing, but there's a difference between making sure we don't appease and just flat out escalating the situation. Aren't you democrats supposed to believe in a steady-handed foreign policy?