ideas, innovations and apps for social work in the age of smartphones and social media 

Are you aware about your photos on Facebook? – The Facebook Photo Privacy App [VIDEO]

The Distributed Computing & Security Group of the Leibniz Universität Hannover, Germany, has …

… developed an app that counts the real number of photos and tags within your and your friends’ photos after you have estimated those values. By using the app, you can also assess the number of photos that apps can see.

Not only your own actions, but how your friends share photos and tag people or locations influences your privacy. First research results suggest that many people underestimate the number of photos shared in the circle of their friends on Facebook and hence they underestimate the number of photos that may raise concerns to their privacy.

You can use the Facebook Photo Privacy app

This video shows the Facebook app Photo Privacy Statistics (German localization) in action.


In addition the Distributed Computing & Security Group also offers related research articles like:

  • Awareness about Photos on the Web and how privacy-privacy-tradeoffs could help
  • SnapMe if you can: Privacy Threats of Other Peoples’ Geo-tagged Media and What We Can Do About It
  • Location Privacy Revisited: Factors of Privacy Decisions. Extended Abstract at Conference on Human Factors in Computing Systems 2013

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Lutz Siemer

Lutz Siemer

Education, Research & Development in Social Work & IT After working as an alternative practitioner and psychotherapist in private practice for nearly ten years I stepped over to higher education in 2005. At Saxion University of Applied Sciences I lecture and do research and development in the area of Social Work, Psychology and IT. Currently I'm focussing on merging mobile technology and social work.

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