Igor Trindade Oliveira

Few years ago users realized that cookies allow websites to collect data about their actions without clear indications that such collection is happening, many have chosen to reject cookies in order to protect their privacy. However, methods of fingerprinting a web browser, created by advertising companies to state sponsored attackers, have become an increasingly common practice.

This presentation covers past and present attacks to the Tor Browser privacy defenses, from Canvas2D attack to Browser specificities. In the end, we present how Tor Browser prevents the attacks.