Search on Yahoo gets more safer with a new tool called SearchScan that scans the results page and flags them if they fit the criteria for harmful pages to your computer. This tools works upon McAfee's SiteAdvisor service.

An excerpt from SearchEngineJournal

Basically, when a user conducts a search on Yahoo, SearchScan will scan (no pun intended) for the following risks/threats and remove the sites from Yahoo SERPs immediately:

* Sites that exploit web browsers by installing malwares when a user visits the sites.
* Sites that offer potentially dangerous software that users would tend to think are normal, harmless software offering free downloads. SearchScan will display warnings next to the search results to alert users and prevent them from visiting the sites.
* Sites that send unsolicited emails or inappropriately share users email addresses to third parties.

Malware has got an all new meaning with more and more data going online and there is a lot that needs to be done to get security ingrained into the architecture of the web. Infact, this has been an issue for a while now.

The Internet was the product from research labs where the sole requirement was to get data out and accessible to people instantaneously. That explains why security is really an after-thought. Google also does mark results as harmful and there was a tool in the news recently (called Goolag) that used the Google search engine to hunt out vulnerabilities in other sites.