The west has economically nuked Russia and that will also result in national security issues for Putin .
Regions with separatist tendencies like Chechenya, Dagestan were stable till now because they were ruled by local strongmen and were pumped huge resources by Putin (something which was seen as unpopular amongst Russians).
Now that those resources will dry up considerably we may see these regions get heated up again and Russia may see another Caucus war on its hands if CIA plays its cards right.