Is this really a thing in Russia?

My friend wants proof that this is a thing and also the name of this particular person.

Apparently in Russia, right now, there’s a machine that tells some guys whether or not the USA fired a missile. Well, at some point in recent history, the machine actually said that we fired a missile at them. The guy in charge told his men not to fire yet though, and to just give it a minute. Everybody was panicking saying the machine was right, but turns out the machine was just being glitchy and, of course, we didn’t fire any missiles. Once again, I’m trying to find proof that this setup/event exists and the name of the guy who basically saved all our butts from nuclear destruction.