You could have downloaded MacPhoneHome 3.5 for Mac from our application library for free. This Mac app is a product of Brigadoon Software, Inc. The software is categorized as Security Tools.
From the developer:
MacPhoneHome is our multi-award winning software product and the first software product ever created to track and locate a lost or stolen Apple computer.
MacPhoneHome installs in minutes, operates at a very low level using almost no resources and is completely transparent to the user.
You may want to check out more software for Mac, such as PasswordVault Lite or BestCrypt, which might be similar to MacPhoneHome.