After his release from prison, Wolff had developed a side business with U.S. intelligence agencies, selling information to a notorious espionage freebooter named John “Frenchy” Grombach, who had served in Army intelligence. Grombach gathered information from a far-flung network of SS old boys and other ex-Nazis in Europe, peddling it to the CIA, State Department, and corporate clients. But Wolff knew that his best connection in the American intelligence world was Allen Dulles himself, who by 1953 had become chief of the CIA.