“‘The Intelligence Coup of the Century’: For Decades, the CIA Read the Encrypted Communications of Allies and Adversaries”, Greg Miller2020-02-11 (, )⁠:

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. The company, Crypto AG, got its first break with a contract to build code-making machines for US troops during World War II. Flush with cash, it became a dominant maker of encryption devices for decades, navigating waves of technology from mechanical gears to electronic circuits and, finally, silicon chips and software. The Swiss firm made millions of dollars selling equipment to more than 120 countries well into the 21st century. Its clients included Iran, military juntas in Latin America, nuclear rivals India and Pakistan, and even the Vatican.

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. The decades-long arrangement, among the most closely guarded secrets of the Cold War, is laid bare in a classified, comprehensive CIA history of the operation obtained by The Washington Post and ZDF, a German public broadcaster, in a joint reporting project. The account identifies the CIA officers who ran the program and the company executives entrusted to execute it. It traces the origin of the venture as well as the internal conflicts that nearly derailed it. It describes how the United States and its allies exploited other nations’ gullibility for years, taking their money and stealing their secrets.

The operation, known first by the code name “Thesaurus” and later “Rubicon”, ranks among the most audacious in CIA history. “It was the intelligence coup of the century”, the CIA report concludes. “Foreign governments were paying good money to the US and West Germany for the privilege of having their most secret communications read by at least two (and possibly as many as five or six) foreign countries.” From 1970 on, the CIA and its code-breaking sibling, the National Security Agency, controlled nearly every aspect of Crypto’s operations—presiding with their German partners over hiring decisions, designing its technology, sabotaging its algorithms and directing its sales targets. Then, the US and West German spies sat back and listened. They monitored Iran’s mullahs during the 1979 hostage crisis, fed intelligence about Argentina’s military to Britain during the Falklands War, tracked the assassination campaigns of South American dictators and caught Libyan officials congratulating themselves on the 1986 bombing of a Berlin disco.

…The German spy agency, the BND, came to believe the risk of exposure was too great and left the operation in the early 1990s. But the CIA bought the Germans’ stake and simply kept going, wringing Crypto for all its espionage worth until 2018, when the agency sold off the company’s assets, according to current and former officials.

…This story is based on the CIA history and a parallel BND account, also obtained by The Post and ZDF, interviews with current and former Western intelligence officials as well as Crypto employees. Many spoke on the condition of anonymity, citing the sensitivity of the subject. It is hard to overstate how extraordinary the CIA and BND histories are. Sensitive intelligence files are periodically declassified and released to the public. But it is exceedingly rare, if not unprecedented, to glimpse authoritative internal histories of an entire covert operation. The Post was able to read all of the documents, but the source of the material insisted that only excerpts be published.