Yahoo has teamed up with Symantec to launch an Internet security software suite to offer to its users.

The Norton Internet Security suite includes Symantec's Norton AntiVirus and Norton Personal Firewall products. Yahoo users can try it out for free for 30 days, after which they can purchase a 12-month subscription.

Yahoo and Symantec have collaborated for years. For example, Yahoo uses Symantec security technology in Yahoo Mail and the companies offer a co-branded browser toolbar.

With this new deal, Yahoo is responding to a similar suite that rival AOL is now testing called Total Care, which includes technology from McAfee, a Symantec competitor.

The deal also increases distribution for Symantec, a timely boost after Microsoft launched its OneCare PC security suite in June. OneCare, which includes anti-virus, backup, firewall, anti-spyware and PC tuning features, costs $49.95 for an annual subscription covering up to three Windows XP PCs.