MySecretVideoDiary is an easy to use Mac OS X application that will allow you to maintain an encrypted video diary.
A passphrase (of your choice) is required to be able to gain access to the diary you have created using MySecretVideoDiary.
NOTE: MySecretVideoDiary can only be purchased via the Mac App Store (the buy link redirects you to its App Store page). To purchase/download applications via the App Store an Apple account is required.