In addition to her PhD from MIT, Greenhill holds an SM from MIT, a CSS from Harvard University, and a BA (with distinction and highest honors) from the University of California at Berkeley. During the 2020-21 academic year, Professor Greenhill is on leave as a Leverhulme Trust Visiting Professor. Upon her return to campus in September 2021, Greenhill will assume the directorship of the MIT-Seminar XXI Program alongside her appointment at Tufts. Greenhill is an editor for the Cornell Studies in Security Affairs book series.