There will be Data Views that you want to limit access to. Note that you can control who has access to Data Views. To change the default security on a Data View, click the ti ti-lock button on the data view details screen.

You can also check the access for Data View categories. This allows you to modify the security for all Data Views in that category.

Taking Security Further

Controlling who has access to Data Views is important. But you also need to limit who can make new Data Views with certain criteria. You can limit what filters are available to specific people and groups under Admin Tools > Settings > Data Filters. Here you'll see a list of available filters with the ability to change who has access to use each filter.

When filtering on the attributes of an entity (like person attributes), normal attribute security will be used in controlling access.

You can also control security on the Data View transforms. This can be configured under
Admin Tools > Settings > Data Transformations.