You may be right about Russian-financed bashers trying to undermine SFOR. But since few people believe bashers, once they become familiar with their antics, I doubt that bashers can really sway or influence anyone (who is experienced). Hence, IMO they pose little security threat, and are primarily a nusaince to new investors.
A much bigger threat to SFOR would be if Russian hackers hacked or infiltrated SFOR (the company) or developed malware that could disable their products.
But I assume that Mark, George, and Ram and their affiliate partners have that area covered, as they would have a lot to lose if that happened.