may try, for example, to use sexual abuse materials to validate and vindicate acts such as rape, battery, sexual harassment, prostitution or child sexual abuse.87 By providing channels for fast, free and difficult-to-trace content, ICTs have provided offenders with increased opportunities to expose children to such harmful content. A particular source of unwanted ­harmful content involves the transfer of peer-to-peer files. Offenders may mislabel such files containing, for instance, violent child sexual abuse material, in order to trick children into opening, downloading and viewing them. In addition, file transfer services through e-mail, instant messaging, social networking sites, file transfer protocols, cloud computing and do-it-yourself websites have dramatically increased the accessibility of child sexual abuse material. It is estimated that from 1997-2006, the number of child pornography images on the Internet increased by 1,500 per cent. In 2001, the CyberTipline mandated by the United States Congress received 21,603 reports of child pornography. In 2004, the number increased by 491 per cent to 106,176 reports of child pornography on the Internet.88 As illustrated in figure III, data from the Internet Watch Foundation (IWF) identified 13,182 webpages containing child sexual images, hosted on 1,660 domains worldwide in 2013.89 Figure III.  The number of domains hosting child sexual abuse content, by year 3,500 3,000 2,500 2,000 1,500 1,000 500 0 2006 2007 2008 2009 2010 2011 2012 2013 Source: Internet Watch Foundation. Mattar, M. Y., 2006. Protecting Children: The Battle against Child Pornography and Other Forms of Sexual Exploitation. Statement at U.S. Congressional Hearing before the Commission on Security and Cooperation in Europe (Washington, DC, September 27, 2006). Available at http://www.csce.gov/index. cfm?FuseAction=ContentRecords.ViewWitness&ContentRecord_ id=774&ContentType=D&ContentRecordType=D&ParentType=H&CFID=15055102&CFTOKEN=d2f0d82887026 b5b-5B6D99F3-9100-FBB0-C72DC9EBC4DA7CFE. 89 IWF, 2014. Annual & Charity Report 2013. P. 11. Available at https://www.iwf.org.uk/accountability/ annual-reports/2013-annual-report. 88 87 Choo, K. R., 2009. Pp. 13 -14. II. Evaluating the problem  17

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