Just in case you didn't already have this preference set, you should. Spyware is unnecessary, and should be deleted out of everyone's computer.
WSJ.com - Mossberg's Mailbox:
One type of spyware, called tracking cookies, doesn't take the form of an actual program, and can be used on Macs. ...Mac users who run Apple's built-in Safari Web browser can stop most tracking cookies by going to the Security portion of the Preferences panel and selecting the option to accept only cookies placed by the site they are using, which eliminates cookies placed by third-party advertising companies. A similar option is available in the Firefox Web browser, on both Mac and Windows. On the Mac, it's in Firefox's Preferences panel, under Privacy
Technorati Tags: Macintosh, Techno-babble
