Forty-four percent of cybersecurity pros say they are reducing the amount of time they spend on Facebook after the company's recent security controversies, a Black Hat survey has found. Seven percent of respondents say they are going to delete their accounts because of the incidents. Something else interesting to note: only one quarter think that “in the future it will be possible for individuals to protect their online identity and privacy,” while more than 50% explicitly disagree with that supposition.