Russian hacker attacks on a number of countries - but are they doing any real harm?

Both Lithuania and Norway have been hit by computer attacks by a Russian hacker group.

- The reason lies in the political landscape, that Sweden and Finland have agreed with NATO and Norway should be punished for that, Jens Stoltenberg is Norwegian and the label for NATO, said former Audun Jøsang, professor of information security at the University of Oslo.

The Russian embassy in Norway writes on its Facebook page that it considers it "inappropriate" to comment on the actions of unidentified people and that it has nothing to do with the attacks.

But are the attacks as big and paralyzing as some social media accounts have tried to claim?

Alp Toker is the founder of the global network monitor Netblocks.

In the video above, he explains what effect the attacks have had - and what their primary goal is.