But the reality of this alleged secret pact appears to have been even more controversial. According to last week’s revelations, the CIA and West Germany’s Federal Intelligence Service (BND) secretly purchased the Swiss company and paid off most of its senior executives in order to buy their silence. The secret deal allegedly allowed the US and West Germany to spy on the classified government communications of several of their adversaries —and even allies, including Italy, Spain and Greece, as well as Austria, Jordan, Saudi Arabia and the United Arab Emirates.

What is more, the secret CIA/BND partnership with Crypto AG was known to senior British and Israeli officials, and information derived from it was routinely shared with them. Government officials in Switzerland and even Sweden were aware that Crypto AG had been compromised, but remained silent.

American and German authorities have not commented on the revelations. But the story has monopolized Swiss media headlines for several days. Some news outlets have opined that the traditional Swiss concept of political neutrality has been “shattered”. Meanwhile, a Swiss federal judge has opened an investigation into the revelations, as the Swiss parliament is preparing to launch an official inquiry. Switzerland’s Prime Minister, Simonetta Sommaruga, said on Sunday that the government would discuss the issue “when we have the facts”.