SAN FRANCISCO—Facebook founder Mark Zuckerberg apologized on Wednesday March 22 for mistakes his company made in how it handled data belonging to 50 million of its users and promised tougher steps to restrict developers’ access to such information.
The world’s largest social media network is facing growing government scrutiny in Europe and the United States about a whistleblower’s allegations that London-based political consultancy Cambridge Analytica improperly accessed user information to build profiles on American voters.
