Deerfield > News > Press Releases > Corporate > Release

VisNetic ActiveDefense 1.3 is launched…

Gaylord, Michigan – February 18, 2003 -®, a leading provider of Internet optimization, connectivity and security software, today announced the release of VisNetic ActiveDefense.

VisNetic ActiveDefense is Intrusion Detection software designed for use on web servers and email servers together with existing security methods to provide an extra layer of security.

“As companies continue their evolution toward becoming more effective online, they are by nature building valuable assets accessible via the Internet; information such as customer contact details, credit card information, proprietary systems, and intellectual property require resolute security,” said Mike Deerfield, CEO of “VisNetic ActiveDefense goes beyond the required yet limited “allow/disallow” security platform of reactive firewalls into a proactive protection state. An organization employing VisNetic ActiveDefense is well-aware of both the risks and benefits associated with online commerce and is aggressively positioning itself to minimize the security threats while maximizing the business advantages.”

Why Intrusion Detection

Intrusion Detection is an additional method of securing a computer system beyond blocking traffic with firewall technology. Supplemental protection is required in instances where access remains vital to the computer system or network and simply blocking traffic via a specified port would render the information stored on that computer(s) unreachable.

For example, a computer hosting web site content via a web server must be accessible to share its information with visitors. Access to the web server’s information is accomplished by opening ports, or doorways, to the file system hosting the website content. Therefore, ports are opened in a traditional firewall by creating exception rules, which allow requested traffic to flow from the web server to the requester/visitor. However, ports opened via a firewall exception rule also provide access to illegitimate requests via the open port, which may be malicious.

While allowing traffic to pass through a specified port, an Intrusion Detection solution serves as a posted guard at the gate. Intrusion Detection closely monitors the traffic flowing into and out of an open port to differentiate genuine requests from potentially dangerous attacks. Requests that appear suspect to the system are then blocked and logged for investigation.

Why VisNetic ActiveDefense

VisNetic ActiveDefense provides the Intrusion Detection required when hosting content to the Internet. Upon installation, VisNetic ActiveDefense scans open ports that allow access to web or email servers for malicious activity, and automatically blocks these attacks. By including highly effective anti-spam filtering for email servers, protection against popular web server viruses (such as NIMDA), SYN flood protection for all services (including FTP servers), and automatic banning of intruders, VisNetic ActiveDefense works with an existing security model to further protect the system.

VisNetic ActiveDefense Pricing and Availability

VisNetic ActiveDefense is available at prices ranging from $149.95 USD for a single server license to $599.95 USD for a 6-pack server license. For additional information, visit

About® is a leading Internet software and services provider. The company, founded in 1994 and headquartered in Gaylord, Mich., specializes in Internet software solutions designed to optimize Internet connectivity for small-to-medium sized businesses and organizations. publishes a leading suite of Internet connectivity, messaging, and security products distributed via ESD (Electronic Software Distribution) globally through both direct and multi-tiered Distribution Channels. From its flagship Internet sharing solution including proxy/firewall/VPN support: WinGate®, to its dynamic DNS service: DNS2Go™, continues to bring its Vision of the Internet to its customers via a newly commissioned family of products, appropriately named VisNetic.

For more information on® visit

If you are a product reviewer and would like to review a Deerfield product, please contact:

Press Relations
Deerfield Communications