Top 10 Most Famous Spies of All Time
4. Ethel and Julius Rosenberg
Ethel Greenglass Rosenberg and Julius Rosenberg was a married couple from the United States, who were executed on the electric chair due to espionage charges. The case began when Sergeant David Greenglass was arrested in the Los Alamos for espionage activity and he confessed that her sister and her husband were involved.