Amna Nawaz:

And speaking of Russia, Microsoft said yesterday that hackers linked to Russian military intelligence tried targeting a pair of conservative think tanks in the U.S. that had advocated for tougher policies against Russia.

Those Russian-affiliated groups known as Fancy Bear or APT28, or sometimes called Strontium, created fake Web sites for the Hudson Institute and the International Republican Institute designed to lure in users, then steal their information.

Now, Microsoft says there's no evidence the hackers were successful. Russian authorities denied any involvement with those attacks.

And I spoke with Microsoft president Brad Smith yesterday.

I began by asking him how confident he was of Russia's involvement.