>I am not surprised at all. Considering how interconnected everyone is there really isn't a way to "cut Russia off".

Pretty much. Except for maybe very poor nations, it's impossible to isolate them as all they need is a beachhead somewhere where they can then bounce their connections all around (to hide said beachhead). In Russia's case, that could be a satellite connection to another country or even some form of line of sight connection over a border. Just to name a very few.