The Internet is an amazing tool that people rely on more and more in several aspects of their lives. One of the fastest growing demographics of Internet users is children. Unfortunately, children are also one of the demographics most vulnerable to being taken advantage of online, making protecting children a chief concern of both parents and software developers. There are several keys to making sure children are protected when using the Internet.

The most important thing that can be done to help a child stay safe when using the Internet is to educate the child of the dangers that exist online. Children should know that while sites such as chat rooms seem like a lot of fun, that there could be dangerous people looking for pictures or personal information of children.

Social networking sites such as MySpace and Facebook are becoming increasingly popular among teens, but users should take precautions such as setting profile pages to “private” to control who is authorized to view the child’s page. Personal information such as phone numbers and addresses should never be posted in a public place on the Internet.

One of the tools that parents often turn to in order to keep their children safe online is filtering software. This software is designed to examine web pages for content that might be offensive, inappropriate, or unsafe for children and to block the site from being accessed from a user’s computer. This software is effective and helpful, but should never be considered a replacement for supervision from parents.

There are often sites that somehow find loopholes in even the most effective filters, so parents should still monitor computer activity. One of the downsides to filtering software is that pages that are inoffensive may be blocked, hindering the user’s ability to access needed information from a harmless website. Filtering software should be password protected so that children can’t give themselves access to the entire Internet.

Many parents monitor children’s Internet activities by tracking where they have been online. Checking browser history and other files stored on computers as users surf from web page to web page is a good way to make sure your children are staying away from harmful or offensive sites. However, many children who use the Internet are smart enough to know how to cover their tracks, so relying on tracking the history of web sites visited is not enough in most cases. Several filtering programs send parents a weekly report of web sites visited and time spent online, a more accurate way to track a child’s Internet activity.

Setting house rules for computer and Internet use is another effective way to protect children who use the Internet. Some rules could include keeping the computer in a public room in the house, limiting the time and hours each day that the Internet can be used, and maintaining a list of approved websites for children to visit.

A parent’s responsibility is to use a combination of all of the above tools and ideas to make sure their children who use the Internet are protected.

Most of us get spam trying to sell us things, most commonly prescriptions, cheap mortgage rates, online gambling and other, more “adult” topics. Most of us just delete them or hit the “spam” button and move on. There are some other types of spam that are a little more serious, however.

One well-known example, circulating for years now, is the Nigerian bank scam. The sender, allegedly the wife or relative of a former dictator or government official (usually in Nigeria, hence the name) tells the sad story of how millions were deposited in a bank account which is no longer accessible. In exchange for your help, they’re willing to share this wealth – for a few mere thousands from your bank account for ‘expenses’. As ludicrous as it seems, people fall for this every year. In one well-publicized case an elderly Czech man who had lost his life savings to this scam shot the Nigerian consul in Prague.

Some Internet scams offer investment opportunities with huge paybacks. They usually claim to be risk-free, but once they have your money, you’re very unlikely to see any return. Another common scam involves offering credit cards for those with bad credit ratings – just send a security deposit and processing fees. In return you get – that’s right – nothing. And by the time you start to investigate, the scam artist has disappeared.

These scams can also effect legitimate businesses you might be dealing with. Because there is so much spam these days, the email services are working hard to filter it out. These filters can sometimes stop legitimate messages, however, and you may not receive something you wanted.

How To Avoid Getting Scammed

Never reply to spam. Doing so simply indicates to the spammer that your e-mail address is valid, and you’ll receive more spam than before. Some spam contains a message offering to remove your e-mail address from their mailing list. Don’t use even this service – it’s nothing but another method for verifying e-mail addresses.

Above all, never give your credit card number, bank account details or private data to anyone unknown over the Internet. PayPal, for example, and other legitimate online businesses will never ask for your password in an email. One common scam is to fake return addresses and tailor subject lines and content so the message appears to be from them or another financial institution ‘confirming’ your information. Don’t fall for them.

How do you know whether it’s spam? Since, one man’s spam is sometimes another’s welcomed advertisement, there’s no perfect answer. But there is one good rule of thumb: if you don’t recognize the sender, it’s probably not someone you want to hear from. After all, how many former dictators in Nigeria are you likely to know?

There is a great deal of debate about this history and evolution of computer viruses. Although many experts may disagree on the origins of viruses, their history is an interesting one. Computer viruses have evolved over the years as the measures taken to detect and disable viruses have become more effective. There is a constant struggle between programmers who write viruses and the programmers who create anti-virus software, with one group trying to stay a step ahead of the other. Computer users can more effectively defend themselves against viruses when they have an understanding of how viruses work and their origins.

In 1949, a mathematician named John Von Neumann introduced the concept of programs that could be taught to replicate themselves. Although this thinking was way ahead of its time, the roots of computer viruses can be traced to the principles Von Neumann was describing. Nearly 20 years later, in the late 1960s, computer users created a game called “Core Wars,” where they would attempt to occupy all of the existing memory on other player’s computers. Programmers at the time had no idea that they were writing computer viruses.

The first known personal computer virus was called the brain virus, and it began infecting PCs in 1986. The Brain Virus was created in Pakistan and was a boot sector virus that affected disk space as opposed to hard drives. The virus would render floppy disks unusable by eliminating their available space. The Brain Virus was a “Stealth” virus, or in other words a virus that tried to affect machines without being noticed by the user. The first anti-virus program was created in 1988. The program was designed specifically to deal with the Brain Virus, detecting, removing, and protecting disks from future problems with the virus. The first Trojan horse virus was also created in the mid 1980’s.

In late 1987, the first “memory resident file infector” was createdóa virus that was embedded in a file and attacked only once the program was ordered to execute by the user. The first of these viruses was called the Lehigh Virus, as the first computers it attacked were at Lehigh University. A month later, a similar virus, called the Jerusalem Virus, attacked in Israel, becoming the first virus that replicated itself within infected files.

In 1990, several companies started selling anti-virus software, including IBM and McAfee, with Symantec introducing Norton Anti-Virus software in 1991. Viruses were become more stealth and more effective than ever before and the need for anti-virus software was growing for PC owners. Ironically, only a few years later, most computer experts felt that anti-virus software would no longer be necessary once Microsoft released its 1995 version of Windows, a fact that is hard to believe in retrospect.

Nearly every year since the mid 90’s, another new virus has been created, detected, and rendered ineffective by anti-virus software. The tug of war between programmers who write viruses and anti-virus software programmers will likely continue for years to come.