Earlier this week, Zuckerberg emerged largely unscathed after facing hours of questioning from U.S. lawmakers on how the personal information of several million Facebook users might have been improperly shared with political consultancy Cambridge Analytica.
"In addition, if you choose to use Facebook from your mobile phone, keep in mind that you'll be responsible for any fees associated with internet usage and/or text messaging as determined by your mobile carrier". "What we know now is that Cambridge Analytica improperly obtained some information about millions of Facebook members by buying it from an app developer that people had shared it with", he said.
Get Data Sheet, Fortune's technology newsletter.
Through Aleksandr Kogan's "This Is Your Digital Life" app, the Cambridge University researcher was able to collect the data, which was then shared with consulting firm Cambridge Analytica.
Fifteen percent are very concerned about being shamed for things they say or do on Facebook, and 9 percent are very concerned about becoming upset or feeling bad about things they see others post.
"We don't sell the data". Future scandals could potentially damage the company's reputation.
Sen. Ted Cruz also brought up Diamond and Silk during his heated exchange with Zuckerberg on Tuesday, citing them as an example of what he characterized as Facebook's "pattern of bias and political censorship".
But they also gave the app access to data from their friends, who did not directly consent to the terms of the app. Facebook is neither a media or a financial institution, he said.
Zuckerberg said it's not true, not once, but twice, on the record, in front of Congress. Vera Jourová, the EU's commissioner for Justice, Consumers and Gender Equality, said on Wednesday that regulators studying Facebook and Cambridge Analytica "need to know much more about what happened, and to whom".
To this point, you may have seen the DeleteFacebook hashtag pop up on any number of social media platforms in recent weeks, including, ironically enough, on Facebook itself.
"That's not how advertising works, and I do think we could probably be doing a clearer job explaining that, given the misperceptions that are out there", he said in response to a question. These days, the Lewiston High School grad is working for a small, nonprofit company called The Center for Humane Technology, which focuses on privacy issues and the idea that many social media platforms and other online services are created to be addicting.
The Facebook boss said he was not familiar with so-called "shadow profiles", which media reports have described as collections of data about users that they have no knowledge of or control over.
Ironically, one of the ways the world has learned of the way Facebook collects and analyses non-members was through data breaches such as the one that hit the company in 2013.