Not everyone wants or needs to run a full blown internet security suite. As a bare minimum, however, you should be running an antivirus software
Every computer with access to the internet is vulnerable to attack by cyber-criminals. These intruders are interested in what you have stored on your computer like credit card numbers, bank account details, passwords and so on. By stealing this information they can either use this information themselves or sell it to other criminals.
This is only one part of the picture. The other being that some of these attackers are just interested in using your PC as a means to attack other computers. This way if an attack gets traced, your computer will be the culprit. A lot of spammers work this way.
With the majority of home users using always on, fast cable or DSL connections attacks have been on the increase. It is much easier for a cyber-criminal to target a home user than a corporate network. Corporate networks are usually highly secured while the average home user is not.
Computer program security should be a priority to all of us surfing the internet. A lot of people neglect to pay attention to their computer's security while online. This not only puts themselves but also other people in danger. And the results may come to haunt you.
Maybe you clicked on an email attachment or a link in a webpage containing malicious code. Once you are infected, the spyware program might start to download extra malware to take over your computer. If you are lucky you will see the signs of an infection. The malware will often advertise itself by incessant pop-ups, changing your desktop wallpaper or urging you to download an antivirus program to disinfect your PC.
These are the most common type of infections which are easily detected. You could try to cleanup your PC by scanning it with the appropriate antivirus or antispyware software. If you want to be a 100% sure you got rid of these malicious programs you better format your harddisk and reinstall the operating system.
The most dangerous spyware however is the kind that doesn't announce its presence and quietly sits in the background preying on any information it can capture. It is therefore advisable to scan your PC regularly, but this is a routine most home users do not apply.
You would ideally have a program in place that protects your data, even when you are infected.
Fortunately, these kind of programs do exist. Have a look at http://pcuserinfo.com/reviews/sentrybay-personal-data-protection/ to take your computer program security into you own hands.