Shares of a company that trafficked in personal Facebook data lose a third of their value

Shares of Acxiom fell by a third Thursday after Facebook ended its partnership with the data broker as result of the social media's data privacy scandal. As a result, Acxiom warned 2019 revenue could be hit by as much as $25 million. Facebook announced plans Wednesday to shut down its third-party data provider division as part of a wider effort to clean up data practices following a massive leak of user profiles. More than 50 million Facebook profiles were harvested by an app for data, which passed the information onto London-based elections consultancy Cambridge Analytica.

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