Journalist and author Julia Angwin recently sought to find the information commercial data brokers store about her, she reports on her blog. During her research, she discovered some of the data was incorrect—one broker asserting she was a single mother with no education—and decided to opt out. But less than half of the 212 data brokers Angwin identified offered opt-outs—there are no laws requiring they do so. In this post, Angwin provides two downloadable spreadsheets for users to both identify data brokers and then decipher which of them allow opt-outs. Editor's Note: Julia Angwin will give a keynote address at the IAPP Global Privacy Summit, March 5-7, in Washington, DC.
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