Generally, one hears the term “big data” and, in the next breath, about the host of privacy issues implicated by that big data. Indeed, a quick google search confirms that in many of the top links appearing in a google search of “big data” include the word “privacy.”
There is a reason for this, of course: big data often contains a lot of information aggregated from different sources about individuals. Many times, consumer do not know in the first place that different pieces of information about them have been collected (or, if they know it has been collected, they do not know the information has been retained); they do not know that such information has been aggregated; and they do not know the aggregated information has been (and is being) further disseminated. Single pieces of information on their own pose a privacy risk. The aggregation of the information, which is then disseminated, poses a greater and different privacy risk.
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