Stoppers of perishable materials, which have rarely survived, were used to seal the contents. Two principal types of amphorae existed: the neck amphora, in which the neck and body meet at a sharp angle; and the one-piece amphora, in which the neck and body form a continuous curve.
If you want to encrypt a file or folder, this can be done by following these steps: 1  Select the file or folder you want to encrypt. 2  Right-click the file or folder and select Properties. 3  Click the Advanced button. 4  Check the box for the  Encrypt contents to secure data  option. 5  Click Apply and then Ok.
About Firmware Passwords. To protect the data on your Mac, you can set a user account password to prevent unauthorized users from logging in. You can also encrypt your startup disk using FileVault so that unauthorized users can't read the data stored on your Mac without the right password.