"Nessus, maker of one of the most popular open-source
vulnerability scanner programs available, changed its licensing
agreement with the release of version 3.0.0 on December 12, causing
a bit of a stir among security industry players that rely on the
code as a component of their commercial solutions. The latest
version is not available under the GPL license, but instead will be
sold as a commercial product.
"The recent licensing changes affect a broad spectrum of users,
including corporations, the open-source community, and even
businesses using services that use Nessus. So what exactly does
this mean for open source? Is it the end of the age of innocence?
What options do interested parties have going forward...?"