Digital Marketing once the Cookie is dead

Cookies have been an integral part of digital marketing for the past 20 years. 
Cookie data has has allowed marketers to better identify and understand consumer behaviors and personalize their interactions with them.

However, for the past few years, privacy has become the core of the ecosystem. The pressure is coming from consumer rights activists and privacy regulators around the world. Consumers want to understand how their data is being treated and used before providing any kind of information.

As such, "the cookie is dead and buried".
"The new currency used to identify people across the open web is authenticated data provided directly by the user, such as emails and phone numbers".

https://www.forbes.com/sites/forbescommunicationscouncil/2020/09/25/what-digital-marketing-will-look-like-once-the-cookie-is-dead/#2caaa21870d1

Miguel Fernandes