ASHLAND, OR. — December 12, 2005 — Open Door Networks Inc. today
announced major new releases of its Macintosh Internet security products.
Who’s There? Firewall Advisor 2.0, DoorStop X Firewall 1.1 and “Internet
Security for Your Macintosh: A Guide for the Rest of Us,” second edition,
are all available immediately, either individually or as part of Open
Door’s newly-announced DoorStop X Security Suite (see “Open Door Networks
announces the DoorStop X Security Suite”).

Who’s There? 2.0 is a modernized version of Open Door’s long-popular
firewall advisor application. Who’s There? 2.0 includes an integrated
version of “Internet Security for Your Macintosh,” indexed by service.
Users who want to learn more about access attempts to specific services can
simply consult the sections of the book relevant to those attempts. They
can also browse the book on a section-by-section basis. Who’s There? 2.0
includes a number of other new features, such as integration with DoorStop
X 1.1, display of additional log fields, and the ability to not show
duplicate log entries.

“Internet Security for Your Macintosh,” second edition is the first
electronic version of the book by Open Door’s president, Alan Oppenheimer,
and long-time employee Charles Whitaker. The book has been updated to
include recent security issues, such as those specific to Mac OS 10.4
(“Tiger”). The book is available for download as a PDF file, and is also
integrated directly into Who’s There? 2.0 and DoorStop X 1.1.

DoorStop X 1.1, a free upgrade for all DoorStop X Firewall users,
integrates the product with Who’s There? 2.0 and “Internet Security for
Your Macintosh,” as well as providing other new features such as an
always-available status menu item.

Who’s There? and the DoorStop X Firewall require Mac OS X 10.3 or later.
All three revised products, as well as the new DoorStop X Security Suite,
are available immediately off the Open Door Web site at Free evaluation versions of the firewall and Who’s
There?, along with a sample chapter from “Internet Security for Your
Macintosh” are available off the site as well. Through January 31, 2006,
special introductory pricing for the products is:

– Who’s There? 2.0: $29
– DoorStop X Firewall 1.1: $49
– “Internet Security for Your Macintosh”: $9
– DoorStop X Security Suite: $69

Through the same period, upgrade pricing includes:

– Any version of Who’s There? to Who’s There 2.0: $19
– DoorStop X 1.0 to DoorStop X 1.1: free
– Any version of DoorStop X or Who’s There? to the Security Suite: $49

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 shipped the first Macintosh firewall in 1998. 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.