There is no definition of a social group in Russian legislation, so it could be anyone. Russian courts have already punished for inciting hatred against "Soviet" people, "residents of Canada", scientists, Muscovites, participants of the Victory Parade and even forensic experts. Most of these cases concern nationality and religion. But among other "social groups", the courts often resort to the protection of the security forces and officials. Read more about how Russian courts decide who is considered a "social group", and how such cases end, on the current hour website.