Computer spyware are malicious files that infiltrate your computer and then "spy"
on your files allowing them to gain personal or financial information at will.
The two most common ways that people become is infected with spyware is downloading and internet browsing. If you download anything like music or films then you almost definitely have spyware as the harmful files hide inside the seemingly safe files. Just browsing the web can infect you with spyware, every time you enter a website you download the webpage so if a website is infected with spyware then they'll pass it on to you.
Also not all spyware comes in the form of "spam bots" that litter your browser, desktop and inbox with unwanted nasties. The most harmful spyware can just enter your system undetected without setting off any 'alarms' ( if you don't have the right AntiSpyware program) and, when undetected, they can take personal and financial information off your computer at will, which can increase the serious threat of identity theft and online fraud.
Online fraud affected 10 million internet users last year and that was largely down to spyware infections, without an up-to-date AntiSpyware program could become a victim of online fraud as well, you don't want to be added to statistics and potentially have your life ruined. All you need is an effective AntiSpyware program that will provide first rate protection both online and offline for your computer.
There are thousands of antispyware programs on the market, most of them are extremely poor and it's very hard to find a good, effective program.