Who's There? Announcement

OPEN DOOR NETWORKS ANNOUNCES "WHO'S THERE?" FIREWALL ADVISOR

ASHLAND, OR -- November 27, 2000 -- Open Door Networks Inc. today announced its new "Who's There?" Firewall Advisor. Available immediately as a public beta release, "Who's There?" provides the next step in Internet security by helping users analyze and investigate the ever-increasing number of access attempts to their Macintosh. With "Who's There?" users can determine the level of risk of an "attack" detected by their personal firewall, find the name, email address and phone number of an administrator associated with the attacker's network, and even automatically draft an email to that administrator.

With the ever-growing number of computers connected to the Internet through "always on" connections, there has been a significant increase in the number of hackers attempting to infiltrate those machines. Personal firewalls have been developed to thwart those attempts. As the number of attempts have increased, however, users have become increasingly confused as to the degree to which they should be worried about the attempts and what they can do in response. "Who's There?" works with the user's firewall to answer those questions.

"Open Door pioneered the Macintosh firewall market with our DoorStop product line," said Alan Oppenheimer, president of Open Door Networks. "But, as the rate of access attempts continues to increase, our customers need even more information than provided by their firewall's logging capabilities. We think 'Who's There?' will provide them with what they need to really understand what they should and should not be worried about, and to take action as needed."

"Who's There?" works with Open Door's DoorStop Personal and Server Editions and with Symantec's newly announced Norton Personal Firewall, which is based on technology licensed from Open Door (see "Open Door Networks licenses DoorStop firewall technology Symantec" ). Features of "Who's There?" include:

Advanced Access History window displaying all logged access attempts and including security risk level and host name of the accessor.
Windows summarizing access attempts by service type and accessor IP address.
Built-in information about the most common attacks and their applicability specifically to the Macintosh environment (many attacks are targeted at, and effective only against, Windows machines).
Automated "Whois" lookup to determine details of the accessor's network, including administrator name, address, phone number and email.
Automated drafting of an email that can be used to notify the administrator of the access attempt and provide the administrator with details that may be useful in tracking the attempt.

Additional information on "Who's There?" along with the free public beta release of the product is available off the "Who's There?" Web site at http://www.opendoor.com/whosthere/ . The final release of the product is expected in January, 2001. Pricing has not been determined.

Open Door Networks, Inc. is a leading provider of Internet security solutions for the Macintosh, and the developer of Mac OS 9's TCP/IP File Sharing feature. Open Door was founded in January, 1995 by Alan Oppenheimer, an 11-year Apple veteran and co-creator of the AppleTalk network system. Open Door's mission is to provide Macintosh users with Internet solutions that are as easy-to-use and as powerful as the Macintosh itself. Open Door Networks is based in Ashland, Oregon.

DoorStop and Who's There? are trademarks of Open Door Networks, Inc.