https://www.recode.net/2018/3/26/17164484/ftc-facebook-investigation-cambridge-analytica

The Federal Trade Commission confirmed on Monday that it has officially opened an investigation into Facebook following the company’s recent Cambridge Analytica privacy scandal.

It was known last week that the FTC had reached out to Facebook and was planning to send the company a list of questions about the Cambridge Analytica situation, but the agency never confirmed that Facebook was under official investigation until now.