https://www.cnet.com/news/facebook-hired-digital-forensics-firm-for-cambridge-analytica-audit/

As Facebook deals with the fallout from a scandal involving misused data from 50 million user accounts, the social network said it's getting outside help to investigate the matter.

The company on Monday said it's hired the digital forensics firm Stroz Friedberg to conduct a comprehensive audit of Cambridge Analytica, a consultancy used by the Trump campaign that received the data from a third-party app developer.