Cerberian's New Filtering and Rating Technologies Provide Most Relevant and Accurate Web Content Filtering.

Business Editors/High-Tech Writers

SALT LAKE CITY--(BUSINESS WIRE)--Oct. 22, 2003

Proprietary Dynamic Real-Time Rating and Dynamic Background Rating

technologies raise industry standards of Web filtering accuracy

Because the Internet changes constantly, no Web filtering or rating service can ever hope to categorize every Web page.

Unfortunately, that is what many Internet filtering solutions are trying to do, by using a combination of inefficient and expensive hand raters and Web crawlers to build the largest database of mostly irrelevant Web sites. Fortunately, as Cerberian has discovered, filtering can be done faster, more accurately, and more cost effectively.

Building an Accurate Database with Technology

Cerberian has taken a different approach to building its database for its fully integrated, outsourced Internet management solution. Rather than trying to rate every page on the Web by hand, Cerberian's database grows organically from the surfing habits of its users through our real-time and artificial intelligence technologies. The result, increased speed and accuracy of the content rating process. Unlike other filtering services which are one layer deep, Cerberian uses a three level process consisting of first, a relevant database of rated and categorized sites and domains; second, Cerberian's Dynamic Real-Time Rating (DRTR) technology, and finally, Cerberian's Dynamic Background Rating (DBR) process.

"Our process ensures that our users are the most protected and safe users on the Internet benefiting from the most current and relevant content in the industry," said Mikko Valimaki, chief technology officer of Cerberian. "The Internet is growing and changing too fast for human hand raters to keep up with the growth, and adding more raters is not cost effective. While many filtering companies claim a large database of URLs, our focus is on the quality of the database by capturing the sites that people actually visit."

Cerberian's database consists of more than 4.7 million categorized sites and domains, which covers close to 94 percent of all user requests. One of the benefits of Cerberian's outsourced model is that the database is continuously updated eliminating the need for daily or weekly downloads or manual updates, required by competing solutions. In the event that a user requests a URL that is not found in Cerberian's ratings database, Cerberian's DRTR technology takes over and services the request seamlessly to the user.

Dynamic Real-Time Rating / Dynamic Background Rating

The Dynamic Real-Time Rating (DRTR) technology retrieves non-rated Web pages from their host servers to be analyzed for content. Cerberian's DRTR technology looks at the words and content on the Web page, the context for each word, links to and from the page, and other sophisticated page analyzing techniques and then responds in one of two ways. Web sites that can be rated as adult material, pornography or other high-liability categories are rated, categorized and immediately blocked or allowed based on the user's policy. These sites are then categorized in Cerberian's master ratings database insuring that every other Cerberian user worldwide has the same, up-to-date information. Sites that fall into other categories are moved to Cerberian's DBR process for additional review.

Cerberian's Dynamic Background Rating (DBR) process uses a number of proprietary ratings modules that individually rate and categorize a page based on various rating technologies. Each module is given a categorization vote for the page with an assigned statistical level of confidence. If the combined total of votes reaches a predetermined level of confidence, the rating is accepted and placed into the database. Sites with votes below the predetermined level of confidence are placed for further review by Cerberian's content management team.

"This proprietary ratings technology allows Cerberian to accurately categorize sites at rates far beyond what human review can accomplish," Valimaki added. "As a result of our three-stage filtering approach, our database is more relevant than any other URL filtering database available, tracking more than 4.7 million URL ratings based on where users are actually surfing. So while other content filtering companies claim huge databases, it is the relevancy and quality of the database along with real-time rating and reviewing technology that determines filtering effectiveness. In this case, bigger is not always better, relevancy is better."

About Cerberian

Cerberian, Inc. is a leading provider of advanced Internet management solutions for businesses, homes, and schools, ensuring a safer, more productive Internet experience. Offered as an outsourced service model, Cerberian minimizes initial investment and ongoing management costs by maintaining the technology and file management responsibility at Cerberian data centers located around the world. Cerberian features a database of more than 4.7 million categorized ratings and an advanced patent pending technology that dynamically rates new Internet content in real-time to ensure the most up-to-date database of Web sites in a constantly changing Internet environment. The Cerberian Web Filter is available as an integrated, value-added service on leading firewall and network appliances, caching devices, security software solutions and service solutions.

For more information about Cerberian, please visit www.cerberian.com or e-mail [e-mail].