‘The Intelligence Coup of the Century’ (The Washington Post)

For more than half a century, governments all over the world trusted a single company to keep the communications of their spies, soldiers and diplomats secret. But what none of its customers ever knew was that Crypto AG was secretly owned by the CIA in a highly classified partnership with West German intelligence. These spy agencies rigged the company’s devices so they could easily break the codes that countries used to send encrypted messages. (Published by The Washington Post)