According to recent reports, spyware is now the most serious threat to corporate networks, outpacing even viruses. And it is a major threat for a wide range of reasons.

First, there is the theft of private information through keylogging or file scanning — both potentially damaging and annoying. On top of this, a large volume of spyware on a PC can grind it down to an almost unusable state, which will also increase those help desk calls.

Prevention is better than a cure. If people can't get at spyware, then there's no way for it to infect their computers. So consider installing web filters and blocking the harmful sites that carry this kind of software, particularly those that contain pornography or music.

Implement strict security policies on PCs to prevent unauthorized applications from being installed by the user, such as P2P applications, which usually come stuffed full of spyware.

You will need to match your anti-spyware software with suitable anti-virus software. The combination should increase detection and removal rates.

Finally, you might also want to consider installing personal firewalls. Many of these come with application-level controls, which can stop unauthorized clients from connecting to the internet.

BEST BUY
Product:
Spy Sweeper Enterprise 
Vendor: Webroot 
Verdict:
Its scanning and removal is excellent, so it is a good proposition for all networks
Website:
www.webroot.com

RECOMMENDED
Product:
VSA NG-5000 
Vendor: Finjan 
Verdict: Best suited to large networks, it is scalable, secure and will integrate with existing security measures.
Website: www.finjan.com