Empoc has introduced Screen Vault 1.0, an app that allows customers to lock and unlock their Mac. It's available for Mac OS X 10.6.6 or higher, costs US$4.99, and is available worldwide through the Mac App Store in the Utilities category.

Screen Vault uses a familiar locking/unlocking mechanism together with the rotate gesture of Apple's Magic Trackpad. You can change the look of the software by changing the graphics and text using a built-in theme editor.

With Screen Vault, you can unlock your Mac using a combination lock by utilizing the rotate gesture of your trackpad or use a pass pattern. You can change the way you lock and unlock your computer by choosing your own lock and unlock sounds.

Screen Vault can be set up to automatically take snap shots of intruders when they try to unlock your Mac with an incorrect combination or pass pattern. What's more, the software can be set up to automatically start recording the second someone tries to unlock your Mac with an incorrect combination or pass pattern.

Screen Vault can be setup to automatically start recording video as soon as you lock your Mac. You can also control what song is playing in iTunes while your screen is locked or view information about the current song that's playing.