Silent Break Security is especially passionate about three things. The first, and most important, is doing everything 110% going above and beyond the standard of expectation. The second is the continual pursuit of knowledge and experience in the information security field. And the third is sharing that knowledge through training, conferences, and community projects. PwnOS is a project sponsored by Silent Break Security with the intention of providing free, hands-on training to security enthusiasts.
Currently there are two versions of PwnOS, PwnOS 1.0 and PwnOS 2.0. Both consist of a Linux virtual machine intentionally designed to be vulnerable providing the student with a path to root. The virtual machines may be run using VMware Player (free), Fusion ($$), or Workstation ($$). Both versions of PwnOS can be downloaded at http://www.pwnos.com or by following the direct links below.