What’s CNAME of your game? This DNS-based tracking defies your browser privacy defenses

Boffins based in Belgium have found that a DNS-based technique for bypassing defenses against online tracking has become increasingly common and represents a growing threat to both privacy and security. In a research paper to be presented in July at the 21st Privacy Enhancing Technologies Symposium (PETS 2021), KU Leuven-affiliated researchers Yana Dimova, Gunes Acar, Lukasz Olejnik, Wouter Joosen, and Tom Van Goethem delve into increasing adoption of CNAME-based tracking, which abuse DNS records to erase the distinction between first-party and third-party contexts.

Read full article on The Register