I've seen this multiple times. Cliff Stoll is strangely compelling, and the story is fascinating.
The book was really one hell of a read. I would say it's an important historical moment, the first recorded state-nation hacking event
I'm too lazy to watch the video. Would you be willing to mention the title of the book? (I searched "KGB hack" on Amazon, but any historical results were swamped by the present-day material.)