align. Distributing objects over global networks without a good way to authenticate them leads to similar risks. Crackers have also succeeded in tainting software sold by brand-name manufacturers. A clutch of companies offer antiviral programs, capable of detecting viruses before they have the chance to spread. Such programs find the majority of viruses but virus detection is likely to remain a serious problem because of the ingenuity of crackers. One new type of virus, known as polymorphic, evades discovery by changing slightly each time it replicates itself. Another extremely important issue about they Internet is child pornography. Computer technology is providing child molesters and child pornographers with powerful new tools for victimizing children. The result is an explosive growth in the production and distribution of illegal child pornography, as well as new forms of child predation. Research carried out at Stockholm University identified 5651 postings of child pornography in four discussion groups. Children around the world are being sexually assaulted, molested and exploited by people who also misuse computers and related technology. The abuse is being photographed and distributed to an international marketplace of child pornography consumers via the Internet. That marketplace- along with related Internet sites that encourage child sexual abuse- is leading to new assaults against children. No longer are schools, public libraries and homes safe harbors from sexual pedophiles- people whose sexual fantasies focus on girls or boys- from around the world. In the past photographs of children being raped, sexually abused and exploited were sold at high prices through tightknit, difficult-to-access networks. Today, those illegal pictures are available for free online, at any hour of the day. Anyone with rudimentary computer skills and an interest in the material can obtain it. Computer networks can also allow pedophiles to identify a...
