Facebook 's shares rose by 4.5 % during CEO mark Zuckerberg 's recent testimony before a select committee . mark Bainsfair , IPA director general , said he did n't think " advertisers and agencies have a trust issue " with the social media site , but that there were worries surrounding the improper use of data , and wanted to see a broader approach to micro - targeted political advertising . However , Tim Wilson , CEO of discussion website Qutee , said he wanted to keep the social media giant " called to account on whether social data / opinion is simply there to empower ad campaigns " .
Facebook's shares rose by 4.5% during CEO Mark Zuckerberg's recent testimony before a Senate committee. Paul Bainsfair, IPA director general, said he didn't think "advertisers and agencies have a trust issue" with the social media site, but that there were worries surrounding the improper use of data, and wanted to see a broader approach to micro-targeted political advertising. However, Tim Wilson, CEO of discussion platform Qutee, said he wanted to see the social media giant "called to account on whether social data/opinion is simply there to empower ad targeting".