There is a "system" that one can get an inkling about by just researching RIR ICANN RIPE Russia. IANA is also worth a look see. Really the most effective way to retaliate would be in this "system". And that is kind of iffy. Today in the world's internet community they try to work a bottom up approach to governance yet they leave out representation of individuals. It works kind of like the UN.And in fact the 2nd Committee of the UN deals with information and communication systems internationally.
So just assume all these groups condemn the actions of Russia as a country regarding international hacking. Let us just call it, making international hacking "illegal" for lack of a better word.
Well then what Obama proposes would be criminal action in retaliation for criminal action. Doesn't that kind of remind you of Mexican Cartels? Or maybe "crime families".If I recall correctly we have not used "gas" on people that kill thousands with gas.
Like or hate Ted Cruz -- he is correct in this fight : https://www.cnet.com/news/us-internet-control-ted-...
Well Obama's administration through the Dept. of Commerce just months ago ceded control from US based to autonomous and controlled by an international community that could totally restrict free speech and allow bullies with votes like Russia to hack as much as they want to.
Obama's administration paved the way for this inability to punish internationally -- starting back with Al Gore who invented the Internet ;-)