18 U.S.C. § 952 : US Code - Section 952: Diplomatic codes and correspondence

Search 18 U.S.C. § 952 : US Code - Section 952: Diplomatic codes and correspondence

Whoever, by virtue of his employment by the United States,
obtains from another or has or has had custody of or access to, any
official diplomatic code or any matter prepared in any such code,
or which purports to have been prepared in any such code, and
without authorization or competent authority, willfully publishes
or furnishes to another any such code or matter, or any matter
which was obtained while in the process of transmission between any
foreign government and its diplomatic mission in the United States,
shall be fined under this title or imprisoned not more than ten
years, or both.