|Mac OS X|
| updated 5 October 2015
Nmap is a free and open source utility for network exploration or security auditing.
| updated 18 November 2013
Dante is a circuit-level firewall/proxy that can be used to provide convenient and secure network connectivity to a wide range of hosts.
John the Ripper 1.8.0
| updated 5 June 2013
John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS, BeOS, and OpenVMS. Its primary purpose is to detect weak Unix passwords.
| updated 30 March 2013
Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
| updated 17 September 2012
Nikto is a web server scanner which performs comprehensive tests against web servers.