Data shredder.

Silently and intelligently watches for suspicious behavior, and when triggered, invokes a solid filter which completely bans the potential intruder from your Macintosh

Utility for creating, managing and backing up encrypted disk images, and for encrypting USB sticks and other external drives. Free trial version available.

An application that stores all of your user IDs, passwords, registration keys, PINs, serial numbers, and the like for easy retrieval using a card metaphor. For protection of this sensitive information, the password database can be scrambled with up to...

A software firewall providing IP address-based protection for any and all TCP-based services running on your Macintosh.

Practical security tips to make Apple's Airport wireless network more secure.

Antitheft tracking software for lost or stolen computers available for Mac OS and Mac OS X.

File and disk deletion software. [Shareware with some features disabled until registered]

Makers of OpenSSH Helper and Secure Shell Helper.

Protect images from unauthorized downloading and printing with this image protection system by Artistscope.