Lift is the most powerful, most secure web framework available today. There are Seven Things that distinguish Lift from other web frameworks. Lift applications are:
Secure -- Lift apps are resistant to common vulnerabilities including many of the OWASP Top 10
Developer centeric -- Lift apps are fast to build, concise and easy to maintain
Scalable -- Lift apps are high performance and scale in the real world to handle insane traffic levels
Interactive like a desktop app -- Lift's Comet support is unparalled and Lift's ajax support is super-easy and very secure
Lift open source software licensed under an Apache 2.0 license.
Because Lift applications are written in Scala, an elegant JVM language, you can still use your favorite Java libraries and deploy to your favorite Servlet Container and app server. Use the code you've already written and deploy to the container you've already configured!