In the past 20 years, the Federal Trade Commission (FTC) has brought two legal cases against Facebook for violating antitrust laws and user privacy, resulting in substantial financial penalties. Notably, Facebook has not faced any criminal charges. Here's information about those legal actions:

1. Antitrust Complaint (2020):

- The FTC sued Facebook in December 2020, alleging that its acquisitions of Instagram and WhatsApp violated antitrust laws and stifled competition in the social media market.

- In June 2021, a federal judge dismissed the FTC's complaint, allowing Facebook to keep both acquisitions.

- However, in August 2021, Facebook appealed the court's dismissal, indicating the legal battle is not fully resolved.

2. Cambridge Analytica Privacy Violation (2019):

- The FTC's investigation centered on Facebook's data privacy practices surrounding Cambridge Analytica, a political consulting firm.

- Cambridge Analytica obtained personal information of millions of Facebook users without their consent.

- Facebook was fined a record-breaking $5 billion to settle FTC's privacy-related charges in July 2019. Additionally, CEO Mark Zuckerberg testified before Congress about the privacy breach.

While these past legal actions don't definitively imply any future punitive measures against Facebook, the precedents set by the FTC show the government's determination to hold big tech companies accountable for competition and privacy-related offenses. However, predicting specific outcomes in potential future cases would require assessing the details of such cases if or when they arise.