Wilmington, July 15 -- Meta CEO Mark Zuckerberg is set to testify this week in a rare $8 billion trial where he and other former top executives face accusations of running Facebook as an illegal operation that mishandled user data. The non-jury trial, starting Wednesday in Delaware's Court of Chancery, stems from the 2018 Cambridge Analytica scandal that exposed the misuse of data from millions of Facebook users.

The lawsuit, filed by Meta shareholders including union pension funds like California's State Teachers' Retirement System, claims Zuckerberg and others violated a 2012 agreement with the U.S. Federal Trade Commission (FTC) by continuing to allow user data to be exploited. Plaintiffs seek reimbursement for fines and damages total...