Upvote:5
We will not know it for sure until the KGB archives are open (and that will never happen).
However, the Soviets were indiscriminately opportunistic in their ideological warfare (the motto being "We do not penny-pinch on ideology" - "На идеологии мы не экономим"), and it is hard to imagine that they would have passed an opportunity to discredit an adversary, especially since all the work was actually done by friends of "friends", not by actual operatives.
On the other hand, this claim
Pacepa also relates that in 1974 Yuri Andropov admitted that had Soviets known in 1963 what they knew in 1974 (newly released information that Hitler was hostile to and plotted against Pius XII) they would never have gone after him.
seems completely preposterous:
This casts a shadow of doubt on the Pacepa's reliability.
So, my guess is that