Data brokers or Information brokers are companies that collect and aggregate consumer information from a wide range of sources such to create detailed profiles of individuals. These companies then sell or share your personal information with others.
As per Wikipedia, “Brokers collect information about individuals from public records and private sources including census and change of address records, motor vehicle and driving records, user-contributed material to social networking sites such as Facebook, Twitter and LinkedIn, media and court reports, voter registration lists, consumer purchase histories, most-wanted lists and terrorist watch lists, bank card transaction records, health care authorities, and web browsing histories. The data are aggregated to create individual profiles, often made up of thousands of individual pieces of information such as a person's age, race, gender, height, weight, marital status, religious affiliation, political affiliation, occupation, household income, net worth, home ownership status, investment habits, product preferences and health-related interests. Brokers then sell the profiles to other organizations that use them mainly to target advertising and marketing towards specific groups, to verify a person's identity including for purposes of fraud detection, and to sell to individuals and organizations so they can research people for various reasons.
Individuals generally cannot find out what data a broker holds on them, how a broker got it, or how it is used. Some data brokers retain all information indefinitely.” (Source: Wikipedia link https://en.wikipedia.org/wiki/Information_broker)
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