Intego's desktop security program offers multi-level, multi-user security for files, documents, folders and applications with secure deletion, password protection and time restrictions.
Utility for creating, managing and backing up encrypted disk images, and for encrypting USB sticks and other external drives. Free trial version available.
Silently and intelligently watches for suspicious behavior, and when triggered, invokes a solid filter which completely bans the potential intruder from your Macintosh