Big Data is relatively a new concept which refers to datasets whose size is beyond the ability of typical database software
tools to capture, store, manage and analyze. The accumulated huge amount of data that previously of no significant
importance or value have been put into maximum use due to the availability of newly designed Big Data tools that surpass
earlier available data mining tools. Big Data is now of tremendous importance to organizations and data mining researchers
because better results are gotten from larger volume of data. Predictions and Analysis of business are becoming more
accurate and interesting with the advent of Big Data Tools. The scale and scope of changes that Big Data are bringing
about are at an inflection point, set to expand greatly, as a series of technology trends accelerate and courage. In this paper,
we introduced readers to the concept of Big Data, the various sources of data for Big Data. Some of the advantages and
applications that have been successfully implemented using Big Data tools. Some of the challenges of Big Data were also
discussed with special reference to the most crucial of these challenges- the personal privacy issue which if not well
managed could bring an individual or an entire organization using Big Data down. This paper aims to create awareness to
researchers and to sensitize the existing and intending users of Big Data tools of the privacy issue and possible measures
that can be of assistance
