How the CIA used Crypto AG encryption devices to spy on countries for decades
> 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.
Follow up: https://www.washingtonpost.com/national-security/compromised-encryption-machines-gave-cia-window-into-major-human-rights-abuses-in-south-america/2020/02/15/bbfa5e56-4f63-11ea-b721-9f4cdc90bc1c_story.html