April 17, 2012
Lyon, France

Full-day Workshop

Workshop on Privacy and Security in Online Social Media

Co-located with WWW 2012

With increase in usage of the Internet, there has been an exponential increase in the use of online social media on the Internet. Websites like Facebook, YouTube, Orkut, Twitter and Flickr have changed the way Internet is being used. There is a dire need to investigate, study and characterize privacy and security of online social media from various perspectives (computational, cultural, psychological). Real world scalable systems need to be built to detect and defend security and privacy issues on online social media. The main goals of the workshop are:

  • To create a platform to discuss latest issues, trends, and cutting-edge research approaches in security and privacy in online social media.
  • To bring researchers who are working on issues related to security and privacy on the Internet, and those studying online social media, to discuss the problems that overlap and bring these two areas together.

The paper acceptance rate is 33.3%.

The list of accepted papers is available.

Proceedings from the workshop will be published by ACM (ISBN: 978-1-4503-1236-3).

Early-bird registration will be possible (only) for authors of workshop papers in March, by using a specific registration form. This form will be available for a short period of time in March after acceptance notification.

PSOSM 2012 Participants


0900 - 0930Introduction by Prof. Ponnurangam Kumaraguru and Prof. Virgilio Almeida [Slides]
0930 - 1030Prof. Anupam Joshi, CS Department, UMBC
Title: Privacy, Security, and Trust in Social Media: Some Issues and Challenges
1030 - 1100Coffee break
1100 - 1230Paper presentation session:
  • Leveraging Trust and Distrust for Sybil-Tolerant Voting in Online Social Media. Nitin Chiluka, Nazareno Andrade, Johan Pouwelse, Henk Sips [PDF][Slides]
  • Credibility Ranking of Tweets during High Impact Events. Aditi Gupta, Ponnurangam Kumaraguru [PDF][Slides]
  • Answering Vertex Aggregate Queries Using Anonymized Social Network Data. Bin Zhou [PDF][Slides]
1230 - 1400Lunch break
1400 - 1530Paper presentation session:
  • Privacy Attacks in Social Media Using Photo Tagging Networks:A Case Study with Facebook. Joao Paulo Pesce, Diego Las Casas, Gustavo Rauber and Virgilo Almeida [PDF][Slides]
  • Online Social Network Platforms: Toward a Model-Backed Security Evaluation. Erwan Le Malecot, Mio Suzuki, Masashi Eto, Daisuke Inoue and Koji Nakao [PDF][Slides]
  • {Privacy, Privacidad, Приватност} Policies in Social Media Providing Translated Privacy Notice. Blase Ur, Manya Sleeper, Lorrie Faith Cranor [PDF][Slides]
1530 - 1600Coffee break
1600 - 1620Paper presentation session:
  • Collaborative Privacy Management for Third-Party Applications in Online Social Networks. Pauline Anthonysamy, Awais Rashid, James Walkerdine, Phil Greenwood, Georgios Larkou [PDF][Slides]
1620 - 1800Open discussion on research problems, and challenges.
Short presentations by:

Call for Papers

Topics / themes include, but not limited to the following (note topics are not mutually exclusive):

  • Information privacy disclosure, revelation and its effects in online social networks
  • Collateral damage due to information leakage (e.g. through photo tagging) on OSM
  • Privacy issues related to location based services on OSM
  • Effective and usable privacy setting and policies on OSM
  • Anonymization of social network datasets
  • Detection and characterization of spam, phishing, frauds, hate crime, abuse, extremism via online social media
  • Cyber-bullying, abuse and harassment detection, and prevention strategies
  • Identifying and curbing malware, phishing, and botnets on OSM
  • Filtering of pornography, viruses, and human trafficking related content or entities on OSM
  • Studying the social and economic impact of security and privacy issues on OSM
  • Usability (including design flaws) of secure systems on online social media
  • Data modeling of human behavior in context of security and privacy threats
  • Privacy and security issues in social gaming applications
  • Trust systems based on social networks
  • Legal and ethical issues for researchers studying security and privacy on OSM
  • Information credibility on online social media
  • Security and privacy challenges in new entrants in OSM (e.g. Google Plus)
  • Effect of OSM on conventional crime (robberies and theft)
Download CFP:

Submission Guidelines

Paper Format: We invite authors to submit papers in following formats:
  • Long paper: maximum of 8 pages (including references)
  • Short paper: maximum of 4 pages (including references)
Paper Template: All submissions must be formatted according to the ACM SIG Proceedings Template (option2).
Submission Link: All submissions for this workshop must be made at: https://www.easychair.org/conferences/?conf=psosm2012.

Important Dates

All submission deadlines are at 11:59PM IST.

Abstract submission February 20th, 2012
Manuscripts due February 23rd, 2012
Notification of acceptance March 8th, 2012
Final revised manuscript March 27th, 2012
Workshop April 17th, 2012


Workshop Organisers

Program Committee

  • Prof. Amitabh Bagchi, Assistant Professor, Indian Institute of Technology (IIT), Delhi
  • Prof. Fabricio Benevenuto, Federal University of Ouro Preto (UFOP)
  • Dr. Munmun De Choudhury, Researcher, Microsoft
  • Prof. Maura Conway, Faculty, School of law and Government, Dublin City University, Dublin
  • Prof. Daniel R Figueiredo, Federal University of Rio de Janeiro, Brazil
  • Prof. Andreas Karuse, Assistant Professor, ETH Zurich, Switzerland
  • Dr. Balachander Krishnamurthy, Researcher, AT&T, USA
  • Prof. Soundar Kumara, Pearce Chair Professor, Pennsylvania State University, USA
  • Prof. Wagner Meira Jr., Associate Professor, Department of Computer Science, Federal University of Minas Gerais (UFMG), Brazil
  • Prof. Sue Moon, Associate Professor, Korea Advanced Institute of Science and Technology (KAIST), Korea
  • Dr. Amit Nanavati, Research staff member, IBM India Research Lab
  • Dr. Daniele Quercia, Researcher, University of Cambridge, UK
  • Prof. Raghav Rao, SUNY Distinguished Service Professor, Management Science and Systems Department, University of Buffalo, USA
  • Dr. Steve Sheng, Senior Technical Analyst, Policy, ICANN
  • Dr. Janice Tsai, North America Privacy Manager at Microsoft