The release of the new Profense version 2.6, containing an expanded feature set including negative filtering and adaptive learning has been announced by makers of Profense™ and Profense Professional ™ web application firewall solutions, Armorlogic. Profense is the base version of its web application firewall software that already includes HTTP load balancing with session persistence, positive filtering and automated learning.

CEO and co-founder of Armorlogic, Jakob Gercke, declared: "We have expanded the features in response to customer feedback." He added: "Negative filtering and adaptive learning were previously available only in Profense Pro but, with the help of our customers, we have concluded this functionality is fundamental to any effective web security solution and should be available in both versions."

Based on signatures, negative filtering detects and stops attacks. Negative filtering, as a complementary function to positive filtering, allows for out-of-the-box protection against known attacks like SQL injection and Cross Site Scripting.

By updating security policies on the fly as it adapts and learns about changing web applications, adaptive learning continuously and automatically improves the protection and operation of a site.

To encourage customers to experience the added features and performance of its Professional version, Armorlogic has also extended its free trial period for Profense Pro from 30 to 60 days.