BROOMFIELD - Facebook is partnering with Broomfield-based Webroot Software Inc. to provide the social network's more than 1 billion users with protection against online security threats.

Financial terms of the deal were not disclosed.

Facebookers can access Webroot's SecureAnyWhere cloud-based protection for their computers through the Facebook AV Marketplace. The first six months is free. A one-year subscription for one device is $39.99, the same price when purchased through Webroot's website.

Also, when users click on a link on their Facebook news feed that leads to a malicious website, they will be notified by Webroot's URL Classification Service. The service is free.

"As a community of more than a billion users, Facebook is committed to ensuring that both our users and their data remain safe," said Joe Sullivan, chief security officer at Facebook (Nasdaq: FB). "We look forward to better protecting the people who use our service with this partnership and Webroot's industry-leading technology and expertise."

Webroot SecureAnywhere includes layers of protection such as a firewall, identity protection, antiphishing and a Web Threat Shield to block harmful websites.

Webroot's URL Classification Service categorizes millions of websites and scores them based on a thorough analysis of their content, reputation, age and threat rating. When users click on a link that is found to be malicious, they will see a pop-up alert that provides them with additional information about why the site was classified as malicious. Users can then make a better-informed decision about whether to visit that site.

"The social networking phenomenon that Facebook has ushered in has also created a new opportunity for cybercriminals to exploit: our inherent nature to share," said Mike Malloy, executive vice president at Webroot. "Some links placed into your timeline may have been put there by hackers. Clicking these links can be risky, so Facebook has chosen Webroot to help protect their users from unknowingly clicking on a malicious link which they believe a trusted friend has shared with them."

To access Webroot SecureAnywhere and learn more about Facebook's security efforts, visit www.facebook.com/security.