17 Biggest Data Breaches of All Time

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8. Deep Root Analytics

No. of records: 198 million
Year: 2016

Unlike most of the cases on our list of the 17 biggest data breaches of all time, this one happened due to poor security of marketing firm Deep Root Analytics, which gathered data on more than 198 million U.S citizens. The leak included home addresses, birthdates, and phone numbers, as well as sentiment analyses predicting how an individual feels about important political issues like gun ownership, abortion, and more. It also included data on religious affiliation and ethnicity. All of this data, some 1.1 TB-worth of information, was placed on an unprotected cloud server.

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