In modern times it's essential to browse the web protected from all threats that continually come at you. Cyber Defender is a good option to do this, as it is a very complete security suite that integrates all the necessary aspects to protect your PC on all fronts into diverse modules.
Detection and deletion of viruses, spam block, spyware deletion, continuous real time protection, etc. Special mention needs to be made of a module called Early Monitor, which works to discover vulnerabilities or irregularities related to passwords, with a firewall, with cookies or with Windows parches.
There is also a practical toolbar which integrates into Internet Explorer, and which tells you the level of danger or threat a webpage you visit has.