Sören Preibusch

I am a UK-based German researcher interested in the entire lifecycle of privacy policy negotiations. My work ranges from empirically underpinned design and deployment of incentive-compatible data collection and processing schemes, to technical enforcement mechanisms at the level of information flow. My publications give an account of the supply and demand for data protection on the social Web and in electronic business.

Contact details

My current affiliation and contact details are: (please note the change in mailing address)

Microsoft Research Cambridge, MSRC
21 Station Road
Cambridge CB1 2FB
United Kingdom
office phone: +44 (0)1223 479798
spr@microsoft.com
media enquiries: please contact me directly via email

Previous affiliations include:

Technische Universität Berlin
Humboldt-Universität zu Berlin, Institut für Wirtschaftsinformatik (Inst. of Information Systems)
Deutsches Institut für Wirtschaftsforschung (German Institute for Economic Research)
University of Cambridge, Computer Laboratory (until October 2012)

For professional affiliations, please see below.

Curriculum Vitae

Sören Preibusch is a Ph.D. student at the University of Cambridge and has been involved with privacy research for more than six years. Using field and lab experiments, observations as well as online surveys, his research focuses on technical and economic aspects of privacy negotiations, including electronic market interactions, online social networking, and the mobile Web.

Mr. Preibusch has lead or accompanied the deployment of several public Web sites and has contributed to privacy and social networking themes within the World Wide Web Consortium. He holds a diploma in industrial engineering from Technical University Berlin (2008). Since 2003, Mr. Preibusch has been a scholar of the German National Academic Foundation.

CV / Lebenslauf Sören Preibusch (01.2013)

Publications

Privacy
Formal Methods

Journal articles:

Preibusch, Sören.
Big Data, Small Money, No Privacy? Was bekommt der Verbraucher für seine persönlichen Daten und wie viel ist Datenschutz wert?
In: digma, Zeitschrift für Datenrecht und Informationssicherheit, 13 (1), pp. 18–21, 2013
Schulthess
- PDF
- BibTeX
Beresford, Alastair R.; Kübler, Dorothea; Preibusch, Sören.
Unwillingness to pay for privacy: A field experiment
In: Economics Letters, 117 (1), pp. 25–27, 2012
Elsevier
- PDF
- BibTeX
- ScienceDirect
Berendt, Bettina; Preibusch, Sören; Teltzrow, Maximilian.
A privacy-protecting business analytics service for online transactions
In: International Journal of Electronic Commerce, 12 (3), pp. 115–150, 2008
M.E. Sharpe
- PDF
- BibTeX
- M.E. Sharpe
Kammüller, Florian; Preibusch, Sören.
An industrial application of symbolic model checking. The TWIN elevator case study
In: Computer Science - Research and Development (previously named: Informatik - Forschung und Entwicklung), 22 (2), pp. 95–108, 2008
Springer-Verlag GmbH
- PDF
- SpringerLink

Book contributions:

Preibusch, Sören.
Datenschutz-Wettbewerb unter Social Network Sites
[Privacy competition amongst social networking sites]
In: Freundschaft und Gemeinschaft im Social Web. Bildbezogenes Handeln und Peergroup-Kommunikation auf Facebook & Co., Klaus Neumann-Braun, Ulla Autenrieth (eds.) pp. 269–284, 2011
Nomos Verlag
- Nomos
- Amazon.de
- BibTeX

Conference and workshop proceedings:

Malheiros, Miguel; Preibusch, Sören; Sasse, M. Angela.
“Fairly truthful”: The impact of perceived effort, fairness, relevance, and sensitivity on personal data disclosure
to appear: 6th International Conference on Trust & Trustworthy Computing (TRUST 2013), 17–19 June 2013, London / UK
2013
Berendt, Bettina; Preibusch, Sören.
Exploring discrimination: A user-centric evaluation of discrimination-aware data mining
IEEE 12th International Conference on Data Mining Workshop, 10 December 2012, Brussels / Belgium
2012
- PDF
- IEEE
- BibTeX
Preibusch, Sören; Krol, Kat; Beresford, Alastair R.
The privacy economics of voluntary over-disclosure in Web forms
Eleventh Workshop on the Economics of Information Security (WEIS 2012), 25–26 June 2012, Berlin / Germany
2012
- PDF
- BibTeX
- slides (PDF)
selected press coverage:
selected Twitter coverage:
- Mathias Vermeulen, @legalift: Web surfers keen to compromise own privacy, study finds - author Soren Preibusch featueres in November on ‪#emsoc‬ conf http://ow.ly/1O9aig, 27 June 2012
- Eversheds PrivacyLaw‏, @PrivacyGlobal: Cambridge University study shows UK web-users regularly provide more ‪#data‬ than required in online forms http://awe.sm/g06S1 ‪#privacy, 25 June 2012
Bonneau, Joseph; Preibusch, Sören; Anderson, Ross J.
A birthday present every eleven wallets? The security of customer-chosen banking PINs
Proceedings of the 16th International Conference on Financial Cryptography (FC '12), 27 February–2 March 2012, Bonaire / Netherlands
2012
Preibusch, Sören; Bonneau, Joseph.
The privacy landscape: product differentiation on data collection
Tenth Workshop on the Economics of Information Security (WEIS 2011), 14–15 June 2011, Fairfax / USA
2011
Preibusch, Sören.
Information flow control for static enforcement of user-defined privacy policies
IEEE International Symposium on Policies for Distributed Systems and Networks (POLICY 2011), 6–8 June 2011, Pisa / Italy
2011
- PDF
- IEEE
- BibTeX
- Privacy calculus
Preibusch, Sören; Bonneau, Joseph.
The Password Game: Negative Externalities from Weak Password Practices
First International Conference on Decision and Game Theory for Security (GameSec 2010), 22-23 November 2010, Berlin / Germany
2010
- PDF
- SpringerLink
- BibTeX
Preibusch, Sören.
Experiments and formal methods for privacy research
Privacy and Usability Methods Pow-wow (PUMP 2010), 6 September 2010, Dundee / Scotland
2010
- PDF
- BibTeX
Preibusch, Sören.
APIs and consumers’ privacy decision-making
W3C Workshop on Privacy for Advanced Web APIs, 12–13 July 2010, London / UK
2010
- PDF from W3C
Bonneau, Joseph; Preibusch, Sören.
The password thicket: technical and market failures in human authentication on the web
Ninth Workshop on the Economics of Information Security (WEIS 2010), 7-8 June 2010, Harvard / USA
2010
- PDF
- dataset and slides publicly available for download
Bonneau, Joseph; Preibusch, Sören.
The Privacy Jungle: On the Market for Data Protection in Social Networks
Eighth Workshop on the Economics of Information Security (WEIS 2009), 24-25 June 2009, London / United Kingdom
2009
- PDF
- dataset and slides publicly available for download
also published as: The Privacy Jungle: On the Market for Data Protection in Social Networks
In: Economics of Information Security and Privacy, Tyler Moore, David Pym, Christos Ioannidis (eds.) pp. 121-167, 2010
Springer US
- SpringerLink
- BibTeX
Preibusch, Sören; Alastair R. Beresford.
Establishing Distributed Hidden Friendship Relations
Seventeenth International Workshop on Security Protocols (SPW 2009), 1-3 April 2009, Cambridge / United Kingdom
2009
- PDF
Preibusch, Sören; Alastair R. Beresford.
Privacy-Preserving Friendship Relations for Mobile Social Networking
W3C Workshop on the Future of Social Networking, 15-16 January 2009, Barcelona / Spain
2009
- PDF from W3C
Preibusch, Sören; Kammüller, Florian.
Checking the TWIN Elevator System by translating Object-Z to SMV
In: Stefan Leue, Pedro Merino (eds.).
12th International Workshop on Formal Methods for Industrial Critical Systems (FMICS 2007)
Lecture Notes in Computer Science (LNCS), 4916, 2008
at the 19th International Conference on Computer Aided Verification (CAV 2007). 1-2 July 2007, Berlin / Germany
Springer-Verlag GmbH
PDF | SpringerLink
Preibusch, Sören.
Spontaneous Privacy Policy Negotiations in Pervasive Environments
In: Robert Meersman, Zahir Tari, Pilar Herrero (eds.).
On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops
Lecture Notes in Computer Science (LNCS), 4806, pp. 814-823, 2007
OnTheMove 2007 (PiPE / PerSys Workshop), 25-30 November 2007, Vilamoura / Portugal
Springer-Verlag GmbH
PDF | SpringerLink
Preibusch, Sören; Hoser, Bettina; Gürses, Seda; Berendt, Bettina.
Ubiquitous social networks – opportunities and challenges for privacy-aware user modelling
Workshop on Data Mining for User Modelling at UM 2007, pp. 50-62, 2007
Ubiquitous Knowledge Discovery for User Modeling (K-DUUM'07), 25 June 2007, Corfu / Greece

PDF
Preibusch, Sören.
Privacy Negotiations with P3P
W3C Workshop on Languages for Privacy Policy Negotiation and Semantics-Driven Enforcement, 17-18 October 2006, Ispra / Italy
2006

PDF
Preibusch, Sören.
Privacy Negotiations enhance Data Collection for CRM
CollECTeR Europe 2006, 9-10 June 2006, Basel / Switzerland
pp. 11-20, 2006

PDF
Preibusch, Sören.
Personalized Services with Negotiable Privacy Policies
CHI 2006 Workshop on Privacy-Enhanced Personalization, 22 April 2006, Montréal / Canada
pp. 29-38, 2006

PDF
Preibusch, Sören.
Implementing Privacy Negotiations in E-Commerce
In: Xiaofang Zhou, Jianzhong Li, Heng Tao Shen, Masaru Kitsuregawa, Yanchun Zhang (eds.).
Frontiers of WWW Research and Development - APWeb 2006: 8th Asia-Pacific Web Conference
Lecture Notes in Computer Science (LNCS), 3841. pp. 604-615, 2006
APWeb'06, 16-18 January 2006, Harbin / China
Springer-Verlag GmbH
PDF | SpringerLink
Preibusch, Sören.
Implementing Privacy Negotiation Techniques in E-Commerce
In: Seventh IEEE International Conference on E-Commerce Technology (CEC'05), pp. 387-390
CEC'05, 19-22 July 2005, Munich
IEEE Computer Society, Los Alamitos, CA
PDF | IEEE Xplore
Teltzrow, Maximilian; Preibusch, Sören; Berendt, Bettina.
SIMT – A Privacy Preserving Web Metrics Tool
In: M. Bichler, J.-Y. Chung (eds.).
2004 IEEE International Conference on E-Commerce Technology (CEC'04), pp. 263-270
CEC'04, 6-9 July 2004, San Diego
IEEE Computer Society, Los Alamitos, CA
PDF | IEEE Xplore

Discussion Papers and Technical Reports:

Nicola Jentzsch, Sören Preibusch, Andreas Harasser.
Study on monetising privacy. An economic model for pricing personal information
European Network and information Security Agency (ENISA)
Deliverable, February 2012
- PDF from ENISA
- BibTeX
- Press release (DIW)
- Blog post (Light Blue Touchpaper)
- Slashdot
- security.nl
- WebProNews
- Technology Review
- Automatisering Gids
- Tietoviikko
- The Register
- Express.be
- CIO
- CIO
- Selected Twitter coverage: @mrkoot @bkuerbis @FVT @shingoym @gohsuket @owenboswarva @bitcoinmoney @blysscomputers @sclopit @pennmkse @castrotech @NetCaucusAC @msretail @ablaircampbell @arnaudlacour @Personal @nigelcameron @blind_phineas @jfderico @wavesblog
Alastair R. Beresford, Dorothea Kübler, Sören Preibusch.
Unwillingness to Pay for Privacy: A Field Experiment
Institute for the Study of Labor (IZA)
IZA Discussion Paper 5017, June 2010
urn:nbn:de:101:1-20100630493
- IDEAS / RePEc copy (incl. BibTeX)
Preibusch, Sören.
Implementing Privacy Negotiations in E-Commerce
DIW Berlin, German Institute for Economic Research
DIW Discussion Paper 526, November 2005

PDF | IDEAS / RePEc
Preibusch, Sören; Hoser, Bettina; Gürses, Seda; Berendt, Bettina.
Ubiquitous Social Networks: Opportunities and Challenges for Privacy-Aware User Modelling
DIW Berlin, German Institute for Economic Research
DIW Discussion Paper 698, June 2007

PDF | IDEAS / RePEc

Comments:

Sören Preibusch.
Comments regarding the Notice of Inquiry on Information Privacy and Innovation in the Internet Economy
NOI: Federal Register 75(78):21226–21231
National Telecommunications and Information Administration, Internet Policy Task Force
8th June 2010
- XHTML (MD5: db49eca8f575fff2e96184563b6ccf0d)
- correspondence filing from NTIA
Joseph Bonneau, Sören Preibusch, Jonathan Anderson, Richard Clayton, Ross Anderson.
Democracy Theatre: Comments on Facebook's Proposed Governance Scheme
University of Cambridge, Computer Laboratory
29th March 2009
- PDF

selected Talks and Presentations:

Preibusch, Sören.
Privacy – Panel at the Data Days 2012
1–2 October 2012, Berlin / Germany
- Press coverage: Stefan Krempl / Sve-Olaf Suhl, heise online: Data Days: Datenschutz so wichtig wie Umweltschutz, 1 October 2011
- Twitter coverage:
  @Chris_iks: "Privacy is an opportunity for consumers and business alike. And we should make use of it!" Sören Preibusch at #datadays12
  @Chris_iks: "Even though we tell people Facebook is bad, they just don't stop using it!" :-) Sören Preibusch at #datadays12
  @DataDays: Soeren Preibusch, Uni Cambridge: "Even when its a bad site, people dont stop using it. Do you see people stop using facebook?" #datadays12
  @Chris_iks: Sören Preibusch, University of Cambridge: "Regarding privacy there's a dysfunction of the market due to lack of transparency." #datadays12
  @kunstreich: »We found that people actually do like to fill out forms on the net. If it’s optional.« ~S.Preibusch #datadays12 #controlparadox
  @DataDays: Preibusch: "The right regulation allows people to act like they want to act. There are people who want to share information" #datadays12
  @kunstreich: »Caring bout privacy is highly correlated to the environment issue. Both are indicative of high income and education.« ~S.Preibusch
Preibusch, Sören.
Unwillingness to Pay for Privacy: A Field Experiment
4th Conference of the European Survey Research Association (ESRA)
18–22 July 2011, Lausanne / Switzerland
- slides available on request
Preibusch, Sören.
Data Protection in Social Media
Annual International Data Protection and Privacy Conference – Privacy Laws and Business
11–13 July 2011, Cambridge / UK
- slides available on request
Preibusch, Sören.
Empowering users with effective and relevant privacy controls
Federated Social Web Europe and W3C Workshop on Social Network Interoperability & Privacy
3–5 June 2011, Berlin / Germany
- HTML
- BibTeX
- Press coverage: Falk Lüke, heise online: FSW2011: Lösungsansätze für Dezentralisierung, 5 June 2011
- Twitter coverage:
  @rigow: Sören Preibusch explains what the users want in 5min #privacy #fsw2011
  @t_grote: Sören Preibusch at #FSW2011: pricing decisions usually override #privacy decisions
  @t_grote: Sören Preibusch at #FSW2011 monopolists tend to collect more and more sensitive private data. #Privacy can give competitive advantage.
Preibusch, Sören.
Data Protection in Social Networks
The DataGuidance 5th Annual European Data Protection Intensive
26–27 May 2011, London / UK
- slides available on request
Preibusch, Sören.
Privacy in Social Networking: Competition and Control
NetCultures – Identitätspräsentation, Kommunikation und Privatheit auf Social Network Sites
15–16 October 2009, Basel / Switzerland
- PDF (slides)
- PDF (abstract)
Preibusch, Sören.
Privacy as a Competitive Advantage
PVNets Workshop
4 August 2009, St Andrews / Scotland
- PDF (slides)
- RTF (abstract)
Preibusch, Sören.
Privacy Technologies and Applications on Electronic Markets
Tutorial at IADIS International Conference "e-Commerce 2005"
EC'04, 15–17 December 2005, Porto / Portugal
- PDF (slides)
- PDF (abstract)

Study materials:

Sören Preibusch, Matthias Fleckenstein.
Strategies to Achieve Market Leadership: The Example of Amazon
Technische Universität Berlin, Seminar "Ausgewählte Fragen der Strategischen Unternehmensführung" (paper)

M. Fleckenstein, F. Kirsch, S. Preibusch, J. Turowski, M. Wiedemann, N. Willmann.
Strategien zum Aufbau einer Marktführerschaft – an den Beispielen von Amazon, Intel, Microsoft (slides)
SoSe 2005
- PDF (paper)
- PDF (slides)
more documents / mehr Dokumente …

Professional affiliations and memberships

Association for Computing Machinery (ACM)
Gesellschaft für Informatik (GI) (German Informatics Society)
Deutsche Physikalische Gesellschaft (DPG) (German Physical Society) (by invitation)
Privacy Economics Research Network (PERN) (inaugural member) (about)

Academic self-administration

Faculty Board of the Faculty of Computer Science and Technology
Council of the School of Technology

Key Facts on Privacy Negotiations

Problem statement - Take-it-or-leave-it offers are the current corporate and regulatory practice: privacy policies are far from personalised. Yet, consumers value privacy quite differently and the worries they attach to particular data items vary. As a result, many frustrated and disappointed customers cancel online purchases or avoid online interaction.

Privacy Negotiations - In Privacy Negotiations, consumers and service providers establish, maintain, and refine privacy policies as individualised agreements through the ongoing choice amongst service alternatives.

Incentivised Privacy Negotiations - In incentivised privacy negotiations, the transaction partners may additionally bundle the personal information collection and processing schemes with monetary or non-monetary rewards.

Ethics of Privacy Negotiations - Privacy negotiations do not contravene the human right to informational self-determination. Consumers are not rewarded for renouncing their privacy, but agree on a price for personal information, which is an economic good. As a privacy-enhancing technology, incentivised privacy policy negotiations lift this price above null compensation.

Sören Preibusch, 2009