Short presentation of the paper

Our ACM CHI 2021 paper addresses the question whether the recently proposed approach of concise privacy notices in apps and on websites is effective in raising user awareness. To assess the effectiveness in a realistic setting, we included concise notices in a fictitious but realistic fitness tracking app and asked participants recruited from an online panel to provide their feedback on the usability of the app as a cover story. Importantly, after giving feedback, users were also asked to recall the data practices described in the notices. The experimental setup included the variation of different…


Many Internet users inside and outside the European Union are very familiar with cookie banners: they pop up on websites, they are often annoying, and it is tedious to really deal with them. Having to state our data sharing and protection preferences over and over again is a questionable concept by itself. But even if we accept the concept of cookie banner as a matter of fact our behavior towards them seems paradox at a first glance.

It has long been known that some of the tracking techniques used are very privacy invasive (e.g. session replay, fingerprinting), behavioral data is…

Nico Ebert

usable privacy

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