Data brokers are companies that collect, aggregate, and sell personal information about individuals — often without those individuals' knowledge or consent. The industry generates more than $200 billion in revenue annually in the United States alone. Acxiom, one of the largest data brokers, claims to hold profiles on 2.5 billion people across 60 countries, with up to 3,000 data points per individual. These profiles include your name, address, income, shopping history, health conditions, political affiliation, and even your daily routines inferred from location data.
Where Data Brokers Get Their Information
Data brokers harvest information from dozens of sources that most users never consider: public records (property records, voter registrations, court filings), social media platforms that sell aggregate or derived data, loyalty program databases shared by retailers, app developers who sell location and behavioral data, and data purchased from other brokers. The picture assembled by correlating these sources is remarkably detailed — often more accurate than what an individual would voluntarily share.
Chat platforms that store message content or metadata are potentially part of this ecosystem. In the United States, there is no federal law prohibiting the sale of chat metadata, and some platforms explicitly sell behavioral data derived from user activity to advertising networks.
Who Buys This Data
Data broker clients include: advertising networks targeting ads based on behavioral profiles, insurance companies assessing risk from lifestyle data, employers running background checks, political campaigns microtargeting voters, private investigators locating individuals, and law enforcement agencies purchasing data they could not legally subpoena. The lack of a federal privacy law in the US means these transactions are largely unregulated.
Opting Out — and Why It Is So Difficult
Major data brokers offer opt-out processes, but they are deliberately difficult. Whitepages, Spokeo, BeenVerified, and MyLife each require separate manual opt-outs. Services like DeleteMe charge $130/year to manage broker opt-outs on your behalf — underscoring how persistent the problem is. The most effective data minimization strategy is avoiding platforms that collect personal data in the first place. A chat platform that requires no account and stores no message history has nothing to sell because it has collected nothing to begin with.