No chance for bad sites: Parental control software. The Internet has become an indispensable part of life for many children and young people nowadays. Yet risks abound." Children must be protected from dangerous content," whether it's pornography or depictions of violence, says Axel Kossel of c't magazine. Software is capable of handling a portion of that effort. But ultimately parents need to be involved. Parents with limited Internet experience may be tempted to simply ban their children from using the Internet altogether. Neither educators nor online security experts consider this a good solution. The objective is to prevent the child from viewing unsuitable content. One option is programs like SafetyKid that work with so called whitelists. These allow children to enter only the addresses for pages that they are explicitly permitted to use, Kossel explains. This shielding tactic is only suitable for very young children. Programs built around blacklists sniff out violent or pornographic sites and block them. Although the lists are constantly updated, they still have weaknesses:" They can not block everything, since thousands of new sites appear every day,