By the end of 2023, it will be impossible to use third-party cookies in Chrome which currently commands a 70% market share. The loss of third-party cookies poses challenges for marketers when it comes to tracking and understanding consumers’ online buying behaviors. RTB House spoke to Piotr Śladowski, Digital Communication Manager at Wavemaker Poland, to understand how media agencies are helping brands best prepare for the new era of cookieless digital advertising.