I don’t really believe that someone will try to steal your favorite film selection, but forewarned is forearmed. This article is for those who worries about sensitive information loses, who accidentally deleted their files, and for those who is very suspicious.
Below is a short list of the most common and reliable ways to secure and hide your data in the Mac OS X:
Way 1: Use FileVault
This feature is built right into the Mac OS X. The mechanism is simple: FileVault encrypts the startup disk of your Mac, so this kind of encryption prevents unauthorized access to your data.
2. Click the lock icon to make the changes, and then click Turn on FileVault.
Be careful by using FileVault. You will need to create password or a recovery key to access your data. If you forget both the key and the password, your data will be lost. Anyway, you will be notified about this during the setup process.
Way 2: Hide Private Files in the Library
Starting from Mac OS Mountain Lion and higher, the Library is hidden until you choose to make it visible. At the same time, once again, be careful, as any changes in this folder may corrupt your apps.
To make the Library visible:
1. In the Finder, click Go.
2. Hold the Option button and then choose Library
Way 3: Use Third-Party Apps
This is the most simple way to hide the current file and encrypt it. Here is the list of the most popular encryptions apps for the Mac OS X: https://discussions.apple.com/docs/DOC-8982.
MacKeeper as a security application offers a wide range of the features including the encryption tool. To hide your files by using MacKeeper, do the following:
1. Launch MacKeeper and click Data Encryptor.
2. Set up a password and choose a hint for it.
3. Add files to Data Encryptor.
4. Choose the files that you want to encrypt, and then click Hide.
Way 4: Store Your Files in Another User Account
If you want to hide files from your child, friends, etc. and you are not keen on encryption, this way is for you:
1. Go to System Preferences > Users & Groups;
2. Click the lock icon to make the changes
3. Add a new user.
4. After you create a new user, you can start dragging the files over to it.