The ninth Symposium on Usable Privacy and Security (SOUPS) will be held July 24-26, 2013 at Northumbria University in Newcastle, UK. This symposium will bring together an interdisciplinary group of researchers and practitioners in human computer interaction, security, and privacy. The program features technical papers, workshops and tutorials, a poster session, panels and invited talks, and lightning talks. SOUPS 2013 will be held in cooperation with ACM SIGCHI. Not Your Typical Conference SOUPS distinguishes itself from other conferences by both providing a high quality technical program and by bringing together an interdisciplinary group of attendees in a format conducive to informal discussion and networking. SOUPS offers reasonable registration fees, which include meals catered by local restaurants featuring a variety of cuisines. Past attendees have raved about "the amazing group of people who were here to talk with" and the "awesome food." One past attendee wrote: "Overall, this is the best conference I've attended. I may be ruined forever going to SIGCHI and other larger conferences."