In the global West at least, Barbarossa and the attack on Pearl Harbor are considered failures of the Allied powers to anticipate Axis moves, or at least a failure by policy makers to read the reports from people who full well knew what was coming. Were there any deadset Axis intelligence coups that people from Allied countries would not be aware of.
You may be interested in this brief note about Finnish codebreaking efforts I wrote earlier. Finnish signals intelligence provided valuable information about Soviet plans and intentions and arguably had a very important role in stopping the 1944 Soviet offensive.