The Times: Making the web safe for children
Your children have a new computer - but do you know how to protect them from the porn merchants and fraudsters who infest the internet? David Rowan has the answers
Your kudos soared as the children excitedly unwrapped the new family computer.
After spending Boxing Day heroically deciphering a pile of manuals, you even worked out how to switch it on. But if you thought that joining "broadband Britain" simply meant maxing out your credit card on gigabytes and megahertz, wake up to your new parental responsibilities. By giving your children home internet access, you are morally bound to protect them as sneak, censor, vigilante and virus-buster.
The internet, headlines constantly warn us, is an unregulated haven of paedophiles and pornographers, hackers and hate-criminals, fraudsters and phishermen. The reality of daily homework research may be rather less sensational, but any responsible parent will want to block their children's exposure to the net's seedier side. But how, with limited technical knowledge, can you be sure that they are surfing safely? What precautions must you take before powering up the family modem?
"Parents need to become computer literate," says Tony Fagelman, the general manager of the Internet Watch Foundation (IWF), which monitors illegal online content. "They can't equip children with technology and not understand how that technology works. Just as we have laws against letting children play truant, it's up to parents to educate their children about the online threats. You can't let them get ahead of you."
The IWF recommends, at the very least, that parents install filtering software that blocks unsavoury content, as well as antivirus and firewall protection that guard PCs from the more pernicious internet perils (see panels). But it also urges parents to discuss the potential risks with children before they are first allowed to log on -not least because commercial filtering software, by all accounts, offers a less perfect defence than the manufacturers' hype would suggest.
"These products may be improving, but they're still not completely reliable," says Sonia Livingstone, a London School of Economics psychologist who recently conducted one of Britain's largest studies of children's internet use. "Every child can regale you with stories about how easily they can get around these filters, and the dodgy material they have seen. But you hear more stories about unproblematic content being blocked inappropriately, which they find frustrating.
Part of the problem is that parents remove the blocks on these filters because they're so crude."
Livingstone's research offers a sobering warning about how little parents know about their children's online activities. Her team interviewed 1,511 young people aged 9 to 19 and sent a questionnaire to 906 of their parents. The study found that 57 per cent of children had come into contact with pornography online, yet only 16 per cent of parents were aware of this. A third of the children had received unwanted sexual comments, and almost half claimed to have given out personal information -risky behaviour that was hardly ever revealed to parents.
Would greater use of filters have helped? The problem, says Livingstone, is that today's products are "quite complicated and confusing" to use. Besides, teenagers resent being patronised and set arbitrary limits, and so they may be spurred to find ways to bypass the filters.
Many of today's child web filters are just too simplistic in their approach to be consistently reliable. Filtering systems generally search for keywords on web pages or e-mails, examine images to identify human skin tones, and monitor domain names and server addresses to screen out those considered unsavoury. Some work by allowing through only content on pre-screened "white lists"; others block web pages known to be prurient. Yet plenty of innocent child-friendly material is lost in the process. Pornographic images, meanwhile, can often slip through.
A survey by the Free Expression Policy Project three years ago identified some pitfalls of what it called these "hopelessly flawed" commercial filters. Popular software such as Net Nanny, SurfWatch and Cybersitter, the report found, blocked the official website of the then US House Majority Leader Richard Armey because it referred to him as "Dick". Another product, SurfWatch, blacklisted the Archie R. Dykes Medical Library at the University of Kansas, having taken against the word "dykes". Health websites were also often blocked, as were many relating to homosexuality or drug education. Even Amnesty International's website was rejected by Cybersitter, which judged the phrase "at least 21" likely to indicate an adult sex site. Amnesty's error was to publish a report of shootings in Irian Jaya, which it stated "bring to at least 21 the number of people in Indonesia and East Timor killed or wounded".
"It's true that this type of software had a bad press a couple of years ago, with 'breast of chicken' recipes being blocked," says John Carr, an internet adviser to the National Children's Homes charity. "But the technology has become much more sophisticated since then, and a lot of these stories are no longer true. People wouldn't put up with these programs if they were that crass and stupid."
Carr recommends that parents always use a child filter. "My kids have used CyberPatrol with no problems, and if you don't yet have an internet service provider, AOL, BT, Yahoo and Wanadoo have a wonderful range of childproof software," he says. He is currently campaigning for manufacturers to pre install these programs on new computers to maximise security, as Comet now does with a two-week free trial of CyberPatrol on its own-brand PCs. "When you buy a brand new car, you're not told that if you want a seatbelt it's in the boot but you'll have to fit it yourself," Carr says. "Surfing should be as safe as it possibly can be, and child safety shouldn't be an optional extra."
So which of the many proprietary products should parents choose? Web User, which claims to be Britain's top-selling internet magazine, reviewed several filtering programs, of which CyberPatrol, ContentProtect and Cybersitter scored well.
CyberPatrol, from SurfControl, filters websites, newsgroups, instant messaging and web-based e-mail. "It occasionally got caught out by naughty words used in a non-sexual context, such as on a message board, but it successfully stopped us viewing anything disturbing or illegal," Web User concluded. Computeractive magazine called it "the most family-friendly product on the market".
ContentProtect, from ContentWatch, was judged by Web User to be "very good at discerning whether a word is being used in an offensive context", and Cybersitter was "extremely efficient" at filtering unsuitable sites, though sometimes "overzealous". The magazine found McAfee Privacy Service, while easy to use, to be sometimes unnecessarily cautious over harmless web pages. Net Nanny failed the reviewer's test, letting through "blatantly unsuitable sex, violence and extremist sites".
Andy Shaw, Web User's technical editor, believes that filtering software should never replace parental supervision: "The most important thing is not to rely completely on these products. Some software is better than others, but there's always stuff that will get through. There's no perfect replacement for monitoring yourself what your children are doing online."
If this inconclusive advice leaves you feeling perplexed, you may be reassured to know that even the experts are still not wholly convinced about web filters. Tony Fagelman, at the IWF, has had to switch off the filter, provided by his broadband supplier, which he uses at home for his children, aged 8, 11 and 14. "It was driving me off the wall, blocking e-mails and not letting me get to ordinary websites," he says. "It's off at the moment, and my wife is a bit concerned. But I've chatted with my kids, and they're fully aware of the dangers, knowing never to go to chatrooms. Besides, they know that I can always check the PC when they're not around, to see exactly what they've been doing."
STAY VIRUS-FREE
You won't have had a very Merry Christmas if you opened an e-mail attachment with that name last week. A "worm", Zafi.D, used the seasonal greeting to propagate itself across the internet, relying on human curiosity to infect Windows computers.
Computer viruses are more than simply annoying: they can detect keystrokes to steal your passwords, credit-card numbers, online banking information -indeed, any sensitive data that can compromise your finances and your security. So great is the risk that, in a recent survey for AOL, around a fifth of home PCs were found to be infected by a virus or worm, and four fifths contained snooping programs that could hijack web pages or serve unwanted advertising.
This "spyware" can be a particular threat to children: it can direct web browsers to hardcore porn sites, or allow strangers to monitor their web-surfing habits without their knowledge. So as well as warning children against opening unsolicited e-mail attachments or using their e-mail addresses in a public forum, parents must ensure that up-to-date antivirus software always protects the home PC.
"If you buy a PC that doesn't have it preloaded, the first thing you must do is install antivirus software," advises Andy Shaw, of Web User magazine. There are plenty of products commercially available. And the good news is that some free antivirus programs also perform well. "We recommend AVG antivirus from Grisoft (free.grisoft.com), which you can download free," says Shaw. "But free programs will be more complicated to install than the one-stop suites."
Or you could buy an Apple PC; though not immune, its tiny market share makes it unattractive to virus writers.
CLICK FOR TIPS
These websites offer safe-surfing advice for parents and children:
GetNetWise (www.getnetwise.org): A detailed resource provided by public service and industry bodies including Microsoft, AOL and Yahoo. Tips on everything from child safety to avoiding spyware and spam.
Kidsmart (www.kidsmart.org.uk): Safety advice for young people, schools and parents from the children's charity Childnet International. Includes educational games and links to recommended child-friendly sites, and for parents some useful tips on communicating the risks of internet use.
Parents Online (www.parentsonline.gov.uk): A website from the Department for Education and Skills, aimed at keeping parents up-to-date with IT as taught in schools. You can put questions to an "agony aunt" and to other parents in the forums.
Chatdanger (www.chatdanger.com): A Childnet International site designed to inform young people about the dangers of communicating with strangers online. It has a child-friendly design and offers advice on using chatrooms, instant messaging, online games, e-mail, and mobile phones.
Internet Watch Foundation (www.iwf.org.uk): A detailed guide to online safety from the body charged with monitoring illegal content. It is part-funded by the industry, so its advice tends to be generic rather than product-specific.
ThinkUKnow (www.thinkuknow.co.uk): A basic cartoon-based website from the Home Office that introduces "the facts" about safe use of chatrooms.
FIVE KEY RULES
Childnet International suggests that children be taught five key safety tips for "SMART" internet use:
S -Safe. Staying safe involves being careful and not giving out your name, address, mobile phone number, school name or password to people online.
M -Meeting someone you meet in cyberspace can be dangerous. Do so only with your parents'/ carers' permission and then when they are present.
A -Accepting e-mails or opening files from people you don't really know or trust can get you into trouble -they may contain viruses or nasty messages.
R -Remember that people online may be lying and may not be who they say they are.
If you feel uncomfortable when chatting or messaging, end the conversation.
T -Tell your parent or carer if someone or something makes you feel uncomfortable or worried.
INSTALL A FIREWALL
Filtering unsavoury content is only half the battle. You also need to keep out the bad guys who would love to fill your PC with malicious spyware, premium-rate diallers, internet worms and spam relays.
The solution is an internet firewall, a software program or physical box that limits access to your computer's internet doorways from other online PCs. These doorways, or "ports", allow hackers or spammers to "capture" your PC without your knowledge. They might locate you simply by searching for unsecured ports, or you might inadvertently install their rogue software when you visit a contaminated web page or open an infected e-mail. It can turn your PC into a "zombie" which can be controlled remotely, used to send millions of spam e-mails or launch hostile attacks against legitimate websites.
A firewall offers substantial protection and should always be fitted to an internet-connected home computer. Plenty of commercial firewalls are available, which allow you to specify various levels of security. If you use Microsoft Windows XP software, you already have a firewall built in, so make sure that it is enabled.
"Also, plenty of free firewall programs available online are pretty good," says Andy Shaw, of Web User. "The best are ZoneAlarm (www.zonelabs.com) and Lavasoft's Ad-Aware (www.lavasoft.de/support/ download)."
(The Times, December 30, 2004)
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