I see a cookie banner Is it even legal? Nataliia Bielova and - PowerPoint PPT Presentation

This presentation contains “cookies“ that will be stored in your memory to make sure you remember this presentation. By attending this presentation, you agree to the placement of these cookies. To learn more, read our Privacy Policy. I see a cookie banner… Is it even legal? Nataliia Bielova and Cristiana Santos joint work with Celestin Matte Inria, France 1

Who has not yet visited this website? HotPETs 2020 Nataliia Bielova and Cristiana Santos 2

When I visit it from the EU… HotPETs 2020 Nataliia Bielova and Cristiana Santos 3

Why do we see cookie banners at all ?! Let’s ask the lawyer 4

! GDPR and ePrivacy Directive (ePD) § GDPR applies to processing of personal data of EU users, by a controller: § established inside/outside the EU; and § offering goods or services; monitors users behavior § ePrivacy Directive (ePD) § protects privacy in online communications (websites) § requires consent for processing data via cookies § Websites ask consent via cookie banners HotPETs 2020 Nataliia Bielova and Cristiana Santos 5

Now you’ll see some cookie banners… Do you think they are compliant with the law? 6

Look at this Twitter banner… HotPETs 2020 Nataliia Bielova and Cristiana Santos 7

Or the IEEE S&P… HotPETs 2020 Nataliia Bielova and Cristiana Santos 8

back to Zoom… HotPETs 2020 Nataliia Bielova and Cristiana Santos 9

and finally CNN … HotPETs 2020 Nataliia Bielova and Cristiana Santos 10

How can we understand when a banner is compliant with the law? It is easy, read the GDPR! 11

! You need to be an expert! § Consent request must be: Freely given 1. Specific 2. Informed 3. Unambiguous 4. Revocable 5. Prior to any data collection 6. Readable and accessible 7. § Check our 75 page draft paper: https://hal.inria.fr/hal-02875447 HotPETs 2020 Nataliia Bielova and Cristiana Santos 12

Or install “Cookie Glasses” to look inside banners! https://chrome.google.com/webstore/detail/cookie- https://addons.mozilla.org/en-US/firefox/addon/cookie-glasses/ glasses/gncnjghkclkhpkfhghcbobednpchjifk HotPETs 2020 Nataliia Bielova and Cristiana Santos 13

Let’s see a CNN cookie banner… HotPETs 2020 Nataliia Bielova and Cristiana Santos 14

HotPETs 2020 Nataliia Bielova and Cristiana Santos 15