Correct. You did say people like Philby, and there were other moles later, though as far as I know none that got as high up.
Putin started out in counter-intelligence but actually ended up more on the intelligence side of things, apparently was involved in efforts to recruit foreigners in Dresden as KGB assets. Masha Gossen in her book "The Man Without a Face" says he was effectively just a secretary and most of his time would have been spent filing reports. Putin was responsible for burning the KGB's archives in Dresden when the Soviet Union collapsed.
Does this have the same meaning in Russian where it doesn't just mean to survive but you might say this when you've had a boring life and you want to make it more exciting. I want to live, I want to get out and do something meaningful. In other words, it doesn't always imply "Please don't kill me" in English.