This may well be the first leak arrest in the new Trump administration. The Washington Post has the details:

A 25-year-old government contractor has been charged with mishandling classified information after authorities say she gave a top-secret National Security Agency document to a news ­organization. Reality Leigh Winner was accused of gathering, transmitting or losing defense information — the first criminal charge filed in a leak investigation during the Trump administration. Winner was arrested Saturday and the case was revealed Monday, shortly after the website the Intercept posted a redacted version of a U.S. intelligence document describing Russian government efforts to use hacking techniques against employees of a company that provides technical support to states’ voting agencies.


As The Federalist’s Sean Davis points out, it looks like the Intercept may have inadvertently burned its source by providing the documents to the government for confirmation:

https://twitter.com/seanmdav/status/871847795040428034

The Obama administration was right to prosecute leakers, but it was wrong to spy on journalists. The boundary is clear: the government should police its own while keeping its hands off the press. For all of its hostility and bluster against the media, the Trump administration so far seems to be walking on the right side of that line.