Proceeding of the 1st International Workshop on Privacy-Preserving IR: When Information Retrieval Meets Privacy and Security (PIR 2014) Luo Si, Hui Yang, Sicong Zhang, Lei Cen  Workshop Organizers o Luo Si (Purdue University, USA) o Hui Yang (Georgetown University, USA)  Student Organizers o Sicong Zhang (Georgetown University, USA) o Lei Cen (Purdue University, USA)  Program Committee o James Allan (University of Massachusetts Amherst, USA) o Peter Bertok (RMIT University, Australia) o Henry Feild (Endicott College, USA) o Daqing He (University of Pittsburgh, USA) o Wei Jiang (Missouri University of Science and Technology, USA) o Payman Mohassel (University of Calgary, Canada) o Adam O'Neill (Georgetown University, USA) o Wolfgang Nejdl (L3S Research Center, Germany) o Ian Soboroff (National Institute of Standards and Technology (NIST), USA) o Ron van Schyndel (RMIT University, Australia)  Submission and Acceptance o Full Paper (6/6) o Short Paper (3/4)