Unlike viruses and worms, spyware does not usually self-replicate. Like many recent viruses, however, spyware exploits infected computers for commercial gain. Typical tactics furthering this goal include delivery of unsolicited pop-up advertisements; theft of personal information (including financial information such as credit card numbers); monitoring of Web-browsing activity for marketing purposes; or routing of HTTP requests to advertising sites.
Spyware is considered one of the biggest threats to your privacy and the security of your data. It's also the number one cause of system slowdowns on computers because it uses precious system resources including RAM (memory) and hard drive space.
It can also compromise your privacy, providing outsiders with information about your computer habits. If a spyware program installs a keylogger it can capture your keystrokes and send it to a third party. This can potentially expose your user IDs and passwords to thieves Some spyware are trojans which allows someone to log into your computer remotely and use it for their own purposes like sending spam or launching malicious attacks on other computers on the Internet, making it look like you are at fault.
How to remove spyware and adware
Manual removal of these types of programs can be very difficult since many of these software programs go to great lengths to hide on a users system. Deleting the offending shareware or spyware program with your uninstall features does not always remove all the adware or spyware from your computer and attempts can often cause system or interference with internet connections.
Many commercial firms have released products designed to remove or block spyware. Most of these programs are are not free, but a free scan version is usually offered, providing real-time protection and scans for spyware, but only the full version is capable of removing spyware.
When it comes to removing spyware form your computer, you will discover that there are many products out there and you don't know which one is the best.
The best advice is to do your own testing. Since most of them offer a free scan. You can download the software and let it scan your PC, then check the result of the scan and the registration price of the software before deciding on the the one to use.
You may start by using the free anti spyware programs such as Windows Defender or Spybot Search and Destroy . They usually will eliminate 70-85 per cent of all known spyware. Windows Defender is Microsoft's free anti-spyware program. It works with Windows XP, Windows 2000 and Windows Vista
Other well-known anti-spyware Programs include
How to keep your computer clean of Spyware
Once you have made sure that your computer is spyware free or have taken steps to remove any spyware programs that might have infected your computer it is important that you take additional steps to keep it clean and prevent additional infestations. This is important to insure the a continuous protection of your computer from being reinfected with spyware programs again. You accomplish this by daily scanning and continuous update of the antispyware software.
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