SurfControl filters e-mail, Web with SuperScout

October 9, 2001 —

SurfControl PLC announced updates to its SuperScout Web and SuperScout E-mail content and access-filtering applications Tuesday, adding such features as limitations on Web access, enhanced context-sensitive word filtering, internal e-mail filtering and a new engine for determining whether an image contains inappropriate content.

SuperScout Web Filter 4.0 is a rules-based application which offers companies that ability to block employee access to individual Web sites, groups of sites or to keep employees off the Web altogether. The new version adds Threshold Blocking, to give employees a preset amount of time or data downloaded on the Internet every day, new reporting features and customized Web "Deny" pages, said Bob Kessinger, product marketing manager for SuperScout Web at SurfControl.

SuperScout Web's ability to set thresholds on the amount of Internet access users have not only ensures productivity but can also help ease bandwidth usage, Kessinger said. SuperScout Web can also be set to block certain file types, he said.

The software comes with more than 50 new, built-in reports for administrators and can be used to create custom Deny pages, the pages that load when a blocked Web site is requested, to allow companies to refer employees to their company's acceptable use policy, he said.

The list of blocked Web sites now stands at over 2.3 million sites and is constantly growing due to the 40 researchers who work on it, Kessinger said. That list, however, can be overridden by customers, he added.

The software is built around a drag and drop interface for building rules. Rules can be quickly built or modified, he said.

SuperScout Web Filter 4.0 runs on Windows NT/2000 and Microsoft Proxy Server and will be available on Oct. 15. The software costs US$23 per user based on a 100 user installation. Prices go down as the number of installations rises. Customers can also subscribe to a frequently-updated database that contains newly categorized Web sites for blocking. That database is free for the first year and costs $1150 per year afterwards.

SuperScout E-mail Filter 3.5 performs much the same function as its Web counterpart, acting to block e-mail based on its contents or the files attached to it. The new version adds support for the filtering of internal e-mails via a plug-in to Microsoft Corp.'s Exchange 5.5 mail server, blocks spam and e-mail suspected to be spam with Risk Filter, and aims to improve the accuracy of its blocking with the new LexiMatch context-sensitive scanning tool and the Virtual Image Agent which determines whether an image contains inappropriate material or not, said Paris Trudeau, also in SurfControl's product marketing division.

LexiMatch enables the software to perform Boolean searches (searches that involve the use of words such as and, or, near, etc. as modifiers), thereby decreasing the number of instances in which the filters incorrectly block or let content through, she said. The technology can be used to block chain letters, hoaxes, spam, rumors and more, she said.

Along with filtering based on words, SuperScout E-mail can block messages with attached image files, she said. The software's Virtual Image Agent can examine images and the proximity of combinations of colors and shapes, thereby more accurately determining whether objectionable material is contained in the file and whether it should be blocked, she said. Blocked or questionable e-mail can be held in a "quarantine" area for later examination by administrators, Trudeau said. This feature can also be used for bandwidth management to send nonessential e-mails at off-peak usage hours, she added.

The new version of SuperScout also incudes new reporting features and Web-based administration, Trudeau said.

SuperScout E-mail Filter 3.5 runs on Windows NT/2000 systems, though a separate server is recommended for the software. The software will be available Oct. 15 at a price of $30 per user for 100 users. A subscription to the Risk Filter service, which offers a spam database, runs $1150 per year, though it is free for the first year.

Though e-mail and Web content filtering applications have come under fire over the last few years, earning the derogatory nickname "censorware," Trudeau asserts that the software is not the problem.

"The tools are neutral," she said, adding that it's how they are used that determines their value.

Kessinger agreed, saying that "if people want to know what other people are doing (online), they're going to."

The solution, he said, is to "be up-front with your employees, respect your employees."

SurfControl, in Congleton, U.K., can be reached at +44-1260-296-250 or on the Web at http://www.surfcontrol.com/.

ITworld.com