MacFort is the simplest and safest way to Encrypt files with Password Protection on Mac. With just two clicks, you can easily password protect your iPhoto album, Mac Mail, Photo Booth Library, Safari or Firefox browsing history, or any files needed to be protected from prying eyes.

Features:

Two steps to password protect your privacy
MacFort is very easy to use. First, scan your Mac for the secret files. After the scanning process is finished, select the items you want to protect by clicking on them..

Protect built-in confidential files
Most mac users don't exactly know where iPhoto stores their precious photos, where Mac Mail saves the email messages, but now it's not a problem..

Free up hard drive space on your Mac
MacFort can even help you free up hard disk space by moving the large iPhoto library or iTunes library to an external or network drive..

Protect your mac from physical data theft
Having a mac laptop stolen is a really bad news. You should worry about your privacy because they can easily get your sensitive data without your login password..

Military-grade encryption
MacFort uses the Mac OS X encrypted disk images feature. This means that your data are encrypted by Advanced Encryption Standard (AES) Algorithm ..

All in one disk image management utility
With MacFort, you need just one click to create, add, resize ,mount/unmount an encrypted vault, or to automatically mount a vault at login..

Limitations: 15-day trial.

Requirements:
OS X 10.5+
Intel