Google has made millions of its users the targets of a test for a new ad program without informing them, warns a privacy activist group.
The Electronic Frontier Foundation said Google's test trial of its Federated Learning of Cohorts without consent "is a concrete breach of user trust in service of a technology that should not exist."
Under the program, Google Chrome browsers "will begin sorting their users into groups based on behavior, then sharing group labels with third-party trackers and advertisers around the web."
