Use the glide.basicauth.required.unl (useUnloadFormat) property to designate if incoming unload requests should require basic authentication.

More information

AttributeDescription
Property name glide.basicauth.required.unl
Configuration type System Properties (/sys_properties_list.do)
Category API and web service
Purpose To enforce basic authentication on unload requests.
Recommended value true
Security risk rating 7.5
Functional ImpactThis remediation enforces a combination of authentication methods, in the form of basic authentication and system level access control. It performs this authentication while retrieving data from tables/pages in the form of unload data on the instance.
Security risk (High) Without appropriate authorization configured on the datasource unload requests, an unauthorized user can get access to sensitive content/data on the target instance. Ensure that glide.basicauth.required.unl exists in the sys_properties_table and is set to true.
References Authentication

To learn more about adding or creating a system property, see Add a system property.