A common way to become a victim of Spyware is to download certain peer-to-peer file swapping products that are available today. When installed, unknown to the user, the Spyware monitors user activity on the Internet and transmits that information in the background to someone else.
They have ability to install other Spyware programs, read cookies, and change the default home page on the Web browser, while consistently relaying this information back to the Spyware author who will either use it for advertising and marketing purposes or sell the information to another party.
Adware on the hand is any software package which automatically plays, displays, or downloads advertising material to your PC after it has installed itself on your system or while the application bundled is being used. They become threatening when they intrude into the user privacy by pop-up unsolicited. They can then be classified as privacy-invasive software.
Spyware works like Adware but is usually a separate program that is installed unknowingly when you install another freeware type program or application. Spyware can also gather information about e-mail addresses and even passwords and credit card numbers.
Most Spyware exist as independent executable programs, they have the capability to monitor your keystrokes, scan files on the hard drive, snoop other applications, such as chat programs or word processors.
Knowing what Spyware and Adware are and how they operate, here are some tips on how to avoid and prevent infection. Make sure you have security suite such as a good firewall that will stop programs installing across the Internet to your system.
Your security suite should have a good anti-virus, Spyware and Adware Removal software with Anti-Spam that can work real-time. Ensure you enable all these security utilities on your PC.
Avoid clicking any unsolicited popups or banners. When you see one, run your anti-Spyware immediately. Clear your history cache often and monitor your cookies, these are potential storehouse for recurrence infections as they often imitate or attached themselves to your home page or frequently visited site.