Big in multiple formats.The topmost countries collecting data from

 Big data is the
collection of enormous information
from people for the fast growth of the companies
by selling the data to other companies or to use in the business and
providing the complete satisfying products and other information to the
customers. The information collected is without their direct permission which comes
from multiple sources and gathered in multiple formats.The topmost countries collecting data from people are (Data Brokers)  Acxiom, Experian, Epsilon, Take 5 Solutions, Equifax, TransUnion,  Credit Karma,
Datalogix, etc. They collect information from the people while they purchase
products in shops or online using a debit card or credit card,  tracking information from our social media
like facebook, twitter, Instagram and other sites.The data brokers collect the
complete details like name, age, address, phone number, credit/ debit card number,
income, e-mail Id, the interest of people and every minute thing about the
people.It also includes likes and dislikes of people.They also know whether you
are looking for a dog or a cat. They are watching all our movement to collect
all our data.For example when you search on internet about the heart diseases
or diabetes medicine the data broker capture your details and sell that data to
the medicine companies.Later when you browse about anything you will get ads
related to the medicine for heart diseases and diabetes.This means we are
losing the privacy. One of the largest brokers, Acxiom, reported over
$800 million in revenue in the last few year.On one side using data is good for
the customers because they get a satisfied goods and services from the buyers
by knowing our tastes and interest while on the other side losing private details without the permission
of people is not acceptable.There are more chances to manipulate the data and
use it in a wrong way.The technology is increasing day by day which is necessary and the big data helps in reducing
crimes and other insecurities but
collecting personal data is still illegal.