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Data Broker Brags About Having Highly Detailed Personal Information on Nearly All Internet Users
Key Excerpts from Article on Website of Gizmodo
Posted: April 1st, 2025
https://gizmodo.com/data-broker-brags-about-having-highly-de...
The owner of a data brokerage business recently ... bragged about the degree to which his industry could collect and analyze data on the habits of billions of people. Publicis CEO Arthur Sadoun said that ... his company [can] deliver “personalized messaging at scale” to some 91 percent of the internet’s adult web users. To deliver that kind of “personalized messaging” (i.e., advertising), Publicis must gather an extraordinary amount of information on the people it serves ads to. Lena Cohen, a technologist with the Electronic Frontier Foundation, said that data brokers like Publicis collect “as much information as they can” about web users. “The data broker industry is under-regulated, opaque, and dangerous, because as you saw in the video, brokers have detailed information on billions of people, but we know relatively little about them,” Cohen said. “You don’t know what information a data broker has on you, who they’re selling it to, and what the people who buy your data are doing with it. There’s a real power/knowledge asymmetry.” Even when state-level privacy regulations are passed (such as the California Consumer Privacy Law), those cases are often not given enough focus or resources for the laws to be enforced effectively. “Most government agencies don’t have the resources to enforce privacy laws at the scale that they’re being broken,” Cohen said. Cohen added that she felt online behavioral advertising—that is, advertising that is based on an individual web user’s specific browsing activity—should be illegal. Banning behavioral ads would “fundamentally change the financial incentive for online actors to constantly surveil” web users and share their data with brokers, Cohen said.
Note: Read more about the disturbing world of online behavioral ads, where the data isn't just used to sell products. It's often accessed by governments, law enforcement, intelligence agencies, and other actors—sometimes without warrants or oversight. This turns a commercial ad system into a covert surveillance network. For more along these lines, read our concise summaries of news articles on Big Tech and the disappearance of privacy.
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