5th Workshop on Hot Topics in Privacy Enhancing Technologies (HotPETs 2012)
Held in conjunction with the 12th Privacy Enhancing Technologies Symposium
July 13, 2012, Vigo, Spain

For the full PETS schedule, please click here. For the original HotPETs Call for Papers, please click here or scroll down.

Selected Papers

HotPETs has no official proceedings. This document compiles selected papers and is published online only to fuel discussions during the workshop. Selected papers are not included in PETS proceedings so as not to preclude later publication of a full paper.

Download HotPETs 2012 Selected Papers.


9:45 Opening Remarks

10:00 Session 1: Censoring Censorship: Dream or Reality?
11:15 Coffee Break

11:45 Invited Speaker
1:00 Lunch

2:30 Session 2: Privacy Erosion — New results and some bad news
3:45 Coffee Break

4:30 Session 3: Privacy Protection — Finally some good news!
5:45 Closing Remarks

Invited Speaker

Balachander Krishnamurthy

Internet privacy has become a hot topic recently with the radical growth of Online Social Networks (OSN) and attendant publicity about various leakages. For the last several years we have been examining aggregation of user's information by a steadily decreasing number of entities as unrelated Web sites are browsed. More recently we have found leakage of user's data to the same aggregating entities as a result of interaction with OSNs. I will present results from several studies on leakage of personally identifiable information (PII) via Online Social Networks (both traditional and mobile OSNs) and popular non-OSN sites. Linkage of information gleaned from different sources presents a challenging problem that has captured the attention of technologists, privacy advocates, government agencies, and the multi-billion dollar online advertising industry.

I will present the current status of both technical and non-technical attempts to ameliorate the problem. Economics might hold the key in increasing transparency of the largely hidden exchange of data in return for access of so-called free services.

Bio: Balachander Krishnamurthy is a member of technical staff at AT&T Labs--Research. His focus of research of is in the areas of Internet privacy, Online Social Networks, and Internet measurements. He has authored and edited ten books, published over 80 technical papers, holds thirty five patents, and has given invited talks in thirty five countries.

He co-founded the successful Internet Measurement Conference and the Workshop on Online Social Networks. He has been on the thesis committee of several PhD students, collaborated with over seventy five researchers worldwide, and given tutorials at several industrial sites and conferences.

His most recent book "Internet Measurements: Infrastructure, Traffic and Applications" (525pp, Wiley, with Mark Crovella), was published in July 2006 and is the first book focusing on Internet Measurement. His previous book 'Web Protocols and Practice: HTTP/1.1, Networking Protocols, Caching, and Traffic Measurement' (672 pp, Addison-Wesley, with Jennifer Rexford) is the first in-depth book on the technology underlying the World Wide Web, and has been translated into Portuguese, Japanese, Russian, and Chinese.

Bala is homepageless and not on any OSN but many of his papers can be found here.

Call for Papers

Important Dates:

All deadlines are firm – no extensions.

As the amount and sensitivity of personal information disseminated on the Web increase, so do related privacy concerns. The ambition of the Workshop on Hot Topics in Privacy Enhancing Technologies (HotPETs) is to foster new ideas, spirited debates, as well as controversial perspectives on privacy (and lack thereof).

Held in conjunction with the PET Symposium, HotPETs is an established, vibrant forum providing researchers with a unique chance to receive feedback from privacy specialists.

The nature of HotPETs' discussion-oriented format is especially suited to promising preliminary results, interdisciplinary research, as well as hands-on experimentation with privacy-enhancing technologies. However, submissions of full-blown work seeking dissemination and feedback from the community are also encouraged.

Topics of interest include, but are not limited to:

The HotPETs Workshop has no official proceedings. Selected papers will not be included in PETS proceedings, not to preclude later publication of a full paper in other venues. If needed, authors may request workshop co-chairs to contact organizers of other venues to clarify the nature of HotPETs publications.

Submission guidelines:

HotPETs chairs:

Contact us with any questions at: