A large-scale study of cookie banner interaction tools and their impact on users privacy

Cookie notices (or cookie banners) are a popular mechanism for websites to provide (European) Internet users a tool to choose which cookies the site may set. In this work, we perform a large-scale measurement study comparing the effectiveness of extensions for cookie banner interaction. We configured the extensions to express different privacy choices (e.g., accepting all cookies, accepting functional cookies, or rejecting all cookies) to understand their capabilities to execute a user's preferences. The results show statistically significant differences in which cookies are set, how many of them are set, and which types are set. Extensions for "cookie banner interaction" can effectively reduce the number of set cookies compared to no interaction with the banners. However, all extensions increase the tracking requests significantly except when rejecting all cookies. 

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Σύνδεσμος στην εξωτερική πηγή: https://doi.org/10.56553/popets-2024-0002