Hald, Gert Martin Malamuth, Neil (2008). "Self-Perceived Effects of Pornography Consumption". Malamuth, Neil M. (August 4, 1986). Do Sexually Violent Media Indirectly Contribute to Antisocial Behavior?. Methods used to acquire these kinds of information include things like hunting publicly readily available databases and social media web-sites (like Facebook), hacking, and social engineering.