ISlack is a security focused distro. Most of the numerous security-related software is suited for penetration testing of your network. There are also security tools for testing your local security and IDSs for monitoring. The configuration of ISlack is hardened by default: (listening for connection) services are turned off, and incoming ports are closed.

Changes:
The main higlights of this release: Tripwire, Nessus, Wifiscanner, Yersinia, Zebra, Kerberos, KDE 3.4.2, XOrg 6.8.2, Dsniff, Ettercap, Fakeconnect, Tor, Slapt-get, Ngrep, Discover - Hardware Recognition, Open Office 1.1.3, kernel 2.4.31, and kernel 2.6.12.5. There are many updates and many other changes.

http://freshmeat.net/projects/islack/?branch_id=57650&release_id=207849