Microsoft's Xandr grants GDPR rights at a rate of 0%

Data Subject Rights Advertising broker Xandr (a Microsoft subsidiary) collects and shares the personal data of millions of Europeans for detailed targeted advertising. This allows Xandr to auction off advertising space to thousands of advertisers. But: although only one ad is ultimately shown to users, all advertisers receive their data. This may include personal details concerning their health, sexuality or political opinions. Also, despite selling its service as “targeted”, the company holds rather random information: the complainant apparently is both a man, a woman, employed and unemployed. This could allow Xandr to sell ad space to multiple companies who think that they are targeting a specific group. As if that were not enough, Xandr does not comply with a single access request. noyb has now filed a GDPR complaint. Complaint against Xandr (EN)Complaint against Xandr (IT)Background: targeted advertising. If companies want to use targeted advertising to promote their products or se