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arXiv · 2005.01868

GDPR: When the Right to Access Personal Data Becomes a Threat

Luca Bufalieri·Massimo La Morgia·Alessandro Mei·Julinda Stefa
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Abstract

After one year since the entry into force of the GDPR, all web sites and data controllers have updated their procedures to store users' data. The GDPR does not only cover how and what data should be saved by the service providers, but it also guarantees an easy way to know what data are collected and the freedom to export them. In this paper, we carry out a comprehensive study on the right to access data provided by Article 15 of the GDPR. We examined more than 300 data controllers, performing for each of them a request to access personal data. We found that almost each data controller has a slightly different procedure to fulfill the request and several ways to provide data back to the user, from a structured file like CSV to a screenshot of the monitor. We measure the time needed to complete the access data request and the completeness of the information provided. After this phase of data gathering, we analyze the authentication process followed by the data controllers to establish the identity of the requester. We find that 50.4\% of the data controllers that handled the request, even if they store the data in compliance with the GDPR, have flaws in the procedure of identifying the users or in the phase of sending the data, exposing the users to new threats. With the undesired and surprising result that the GDPR, in its present deployment, has actually decreased the privacy of the users of web services.

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Luca Bufalieri, Massimo La Morgia, Alessandro Mei, Julinda Stefa. 2020-05-04. GDPR: When the Right to Access Personal Data Becomes a Threat. https://doi.org/10.1109/icws49710.2020.00017

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