https://amgreatness.com/2019/04/29/why-are-clapper-and-brennan-not-in-jail/
The clearest of all the laws concerning U.S. intelligence is Section 798, 18 U.S. Code—widely known in the Intelligence Community as “the Comint Statute,” or “the 10 and 10.” Unlike other laws, this is a “simple liability” law. Motivation, context, identity, matter not at all. You violate it, you are guilty and are punished accordingly.
Here it is:
(a) Whoever knowingly and willfully communicates, furnishes, transmits, or otherwise makes available to an unauthorized person, . . . any classified information—
(1) concerning the nature, preparation, or use of any code, cipher, or cryptographic system of the United States or any foreign government; or
(2) concerning the design, construction, use, maintenance, or repair of any device, apparatus, or appliance used or prepared or planned for use by the United States …or
(3) concerning the communication intelligence activities of the United States or any foreign government; or
(4) obtained by the processes of communication intelligence . . .
Shall be fined under this title or imprisoned not more than ten years, or both.
On December 9 and 10, 2016, the New York Times and the Washington Post independently reported that anonymous senior intelligence officials had told them that, based on intercepted communications, the intelligence agencies agreed that Russia had hacked the Democratic National Committee to help Donald Trump win the election. Their evidence was the fact of their access to U.S communications intelligence. A flood of subsequent stories also cited allegations by “senior intelligence officials” that “intercepted communications” and “intercepted calls” showed that “members of Donald J. Trump’s 2016 presidential campaign and other Trump associates had repeated contacts with senior Russian intelligence officials in the year before the election.”
Incontrovertibly, the officials who gave these stories to the Times and Post violated the Comint Statute, and are subject to the “10 and 10” for each count. There is no clearer instance of what the governing law is, of how it was violated, and of the punishment that this incurs.