Facebook gave dozens of companies special access to user data, detailing for the first time a spate of deals that contrasted with the social network’s previous public statements that it restricted personal information to outsiders in 2015.

Source: Facebook Reveals Apps, Others That Got Special Access to User Data – WSJ
Gross incompetence:

Facebook indicated it has struggled to fully reconstruct what happened to its users’ information.

CEO Mark Zuckerberg and COO Sheryl Sandberg have been caught lying and can no longer be trusted; both need to leave the company.