The audit report, which Facebook commissioned two years ago, pointed to what the authors described as a series of harmful decisions.
The findings come at a time when some 900 advertisers, including major brands such as Coca-Cola, have joined a boycott promoted by major US civil rights groups.
Facebook on Thursday launched Threads, an image-centric messaging app designed to weave tight circles of Instagram friends together, while ramping up its challenge to rival Snapchat. Threads is its own separate smartphone app, but ties into lists of "clos
The United States, Britain and Australia have called on Facebook to give authorities the ability to circumvent encryption used in its messaging services - a measure opposed by the social media giant.