Similar to BackBox, this is also an Italian based distro led NanniBassetti by @NanniBassetti
CAINE stands for (Computer Aided INvestigative Environment) is an Italian GNU/Linux live distribution created as a project of Digital Forensics. CAINE has a specific focus on digital forensics, so if this is your area the this distro is highly recommended.
CAINE is configured to help the security expert (digital forensics expert) to exercise the various phases of a digital investigation. A great feature of CAINE is that it includes a semi-automated compilation of a final report, i.e. an audit. Since most security professionals hate doing audit reports this is really a great feature!
CAINE is completely open source and even has a Windows version called Wintaylor.