A. Cambridge Analytica was able to get access to information of as many as 50 million people

B. Cambridge Analytica only collected the personal information of people who agreed to take the survey

C. Facebook had ever demanded that they delete all of the data that they had obtained in violation of Facebook's rules

D. Facebook paid a record-breaking 5 billion dollars fine, by far the largest penalty ever imposed on a company for violating consumers' privacy rights