It would be very useful if it was possible to secure the My Survey Designs folder and the media subfolder on local devices so that it is not accessible by the user. Currently anyone downloading the survey form has full access to the XLSForm, external csvs (for pulldata functions) and associated media (e.g. My Files > Device storage > ArcGIS > My Surveys > 'Survey name/code' > esriinfo on an Android device). This limits our ability to include any sensitive data, such as a pulldata function which pulls in user information (e.g. name, address) based on their AGOL login. This has data protection implications for us. The same issue applies to any sensitive information stored in choice lists which may only be visible to certain users (e.g. site names) based on a choice filter.
