The Moscow rules are rules-of-thumb said to have been developed during the Cold War to be used by spies and others working in Moscow.
The rules are associated with Moscow because the city developed a reputation as being a particularly harsh locale for clandestine operatives who were exposed. The list may never have existed as written.
CIA officer Tony Mendez wrote:<blockquote>Although no one had written them down, they were the precepts we all understood for conducting operations in the most difficult of operating environments: the Soviet capital. By the time they got to Moscow, everyone knew these rules. They were dead simple and full of common sense.</blockquote>In the International Spy Museum in Washington, D.C., the Moscow Rules are given as: