Locked journals can also be encrypted for increased security. First, select the journal in the Sidebar. If the journal is unlocked, click the "Lock" button there to lock the journal. Now, click the "Encrypt" button. MacJournal will encrypt the entries in the journal so they aren't readable outside of MacJournal. Even when you unlock the journal, the contents of the journal will still be readable only to MacJournal while the journal is unlocked. To turn off encryption, press the "Decrypt" button in the same area that the "Encrypt" button was in. You can also use the Inspector to control these settings.
MacJournal uses AES-256 encryption to secure your data.