You can password protect live streams, video on demand files and playlists over DaCast.
This is done through going to the PUBLISH SETTING tab for the content you want to add a password to.
There is a "Password Protected" feature that needs to be turned ON. When enabled a field will appear where you can enter in a password. This is the password your viewers will need to enter to gain access to the stream.
You can return to this tab to change the password later if needed. In the lower left corner click SAVE to confirm after you are done entering in a password.
After doing this your content will be locked behind a password.
Note: This feature does not currently work with packages or on Facebook embeds.