An
information broker or
data broker collects 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,
[1] 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.
[2]
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.
[3] Data brokers also often sell the profiles to government agencies, such as the FBI, thus allowing law enforcement agencies to circumvent laws that protect privacy.
[4]