OPEN DOOR NETWORKS SHIPS WHO'S THERE? FIREWALL ADVISOR VERSION 1.4

PROVIDES SUPPORT FOR SYMANTEC'S NEW NORTON PERSONAL FIREWALL 3.0

ASHLAND, OR. -- May 14, 2003 -- Open Door Networks Inc. today announced that it was shipping version 1.4 of its Who's There? Firewall Advisor for Mac OS X. Who's There? Firewall Advisor enhances Macintosh Internet security by helping users analyze, investigate and respond to access attempts to their Macintosh. Who's There? 1.4 updates the product for use with Symantec's newly-announced Norton Personal Firewall 3.0.

Who's There? 1.4 can read and parse the new log format introduced with Symantec's latest release. It also provides information on access attempts to Apple's new iTunes music sharing service. The product continues to support all versions of Norton Personal Firewall, as well as Mac OS X Server, Brickhouse, and any other firewall that uses Mac OS X's built-in firewall and logging capabilities.

The Who's There? for Mac OS X upgrade is free to anyone who purchased version 1.2 or later of the product from Open Door, or $29 otherwise. A full version of the product is $49. The upgrade, a free evaluation version of the product and additional details are available directly from the Who's There? Web site at http://www.opendoor.com/whosthere/ . A version of Who's There? specific to Mac OS 9, which has significantly different security characteristics from OS X, is also available.

Open Door Networks, Inc. is a leading provider of Internet security solutions for the Macintosh. Open Door was founded in 1995 by Alan Oppenheimer, co-creator of the AppleTalk network system and co-author of the book "Internet Security for Your Macintosh: A Guide for the Rest of Us." 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?" Firewall Advisor are trademarks of Open Door Networks, Inc. Other trademarks are held by their respective owners.