**Facebook-Cambridge Analytica Data Scandal**.
The Facebook-Cambridge Analytica data scandal was a major political scandal that occurred in early 2018. It involved the misuse of personal data of millions of Facebook users by Cambridge Analytica, a data analytics firm that worked for the Trump campaign during the 2016 US presidential election..
**Background**.
In 2014, Cambridge Analytica was hired by the Trump campaign to provide data analysis and targeting services. The firm obtained data on millions of Facebook users through a personality quiz app called .