Once the file is encrypted, you can share it via Mail, Messages, AirDrop, etc. (optional) To help you remember the password, enter a Password Hint. The way you password protect your files with this tool is to create an image file containing your files and then add a password to it. It may bea good ideato password protect your Public folder. Found insideFirst, you can access the files from iDisk even when you're not connected to the Internet. Choose File > Export, then select Encrypt.