You can use DropDMG to transfer files from one Mac to another, while
protecting them from unauthorized access.
- Put the files in a folder.
- Set DropDMG to create a compressed .dmg image that’s
encrypted with a passphrase.
- Drag your folder onto DropDMG. This will create an encrypted
.dmg file.
- You can then send this file via e-mail, upload it to a Web or
FTP server, or transfer it physically (via flash drive, hard
disk, CD, etc.) without worrying about anyone accessing its
contents.
- An authorized person can access the files by double-clicking
the .dmg file and entering the passphrase.