From UpGuard:
The UpGuard Research team can now disclose that a collection of data sets detailing the purchasing habits and consumer behavior profiles of virtually every American household has been secured. The publicly exposed data comes from market analysis company Tetrad but includes data blended from many sources, including Experian Mosaic, Claritas/Nielsen’s PRIZM, and what appear to be Tetrad clients and prospects. Within three very large files (titled Mosaic01-03.txt) are details corresponding to the full name, gender, address, and “type” for over 120 million individuals.
Read more on UpGuard.