With FLoC ( Federated Learning of Cohorts), Google had proposed a replacement for the unloved third-party cookies.
However, data protectionists had criticized the plans from the outset, saying that it was perfectly possible to identify individual persons. Now the development of FLoC has been completely stopped.
Now come the “Topics
Now “Topics” are to replace the FLoC proposal. To find out a user’s interests, Google categorizes the websites visited based on topics.
The idea behind this is that the local browser learns about the user’s interests as they move around the Internet. For this purpose, the data of the last three weeks of the browsing history is stored. Google is initially limiting the number of topics to 300, but plans to increase that number over time. Google notes that these topics will not include sensitive categories such as gender or race.