Call for Papers 12th Privacy Enhancing Technologies Symposium (PETS 2012), Vigo, Spain Jul 11 - 13, 2012 Important Dates: * submission deadline: February 20, 2012, 23:59 UTC (7 pm EST) * PETS author notification: April 2, 2012 * PETS camera-ready deadline for proceedings: April 30, 2012, 23:59 UTC (8 pm EDT) * HotPETs submission deadline: April 16, 2012, 23:59 UTC (8 pm EDT) * HotPETs notification: May 14, 2012 * HotPETs camera-ready deadline: May 28, 2012, 23:59 UTC (8 pm EDT) All deadlines are firm - no extensions. Privacy and anonymity are increasingly important in the online world. Corporations, governments, and other organizations are realizing and exploiting their power to track users and their behavior. Approaches to protecting individuals, groups, but also companies and governments, from profiling and censorship include decentralization, encryption, distributed trust, and automated policy disclosure. The 12th Privacy Enhancing Technologies Symposium addresses the design and realization of such privacy services for the Internet and other data systems and communication networks by bringing together anonymity and privacy experts from around the world to discuss recent advances and new perspectives. The symposium seeks submissions from academia and industry presenting novel research on all theoretical and practical aspects of privacy technologies, as well as experimental studies of fielded systems. We encourage submissions with novel technical contributions from other communities such as law, business, and data protection authorities, that present their perspectives on technological issues. As in the past, the proceedings will be published in the Springer Lecture Notes in Computer Science series, and will be available at the event. Suggested topics include but are not restricted to: * Anonymous communications and publishing systems * Attacks on privacy and privacy technologies * Censorship resistance * Data protection technologies * Economics of privacy and PETs * Fielded systems and techniques for enhancing privacy in existing systems * Location privacy * Privacy and anonymity in Peer-to-Peer, Cloud, and Ubiquitous Computing Environments * Privacy and inference control in databases * Privacy-enhanced access control or authentication/certification * Privacy-friendly payment mechanisms for PETs and other services * Privacy in Online Social Networks * Privacy policy languages and tools * Privacy threat models * Profiling and data mining * Pseudonyms, identity management, linkability, and reputation * Reliability, robustness and abuse prevention in privacy systems * Traffic analysis * Transparency enhancing tools * Usability issues and user interfaces for PETs Papers to be submitted to the PET Symposium must be at most 20 pages.. All submitted papers will be judged based on their quality and relevance through double-blind reviewing, where the identities of the authors are withheld from the reviewers. We also invite proposals of up to 2 pages for panel discussions or other relevant presentations. For more details, see: http://petsymposium.org/2012/