The appropriate rule type to use in the DLP profile for a document that is considered confidential when filled out is fingerprint classification. Fingerprinting is a method used to identify and protect sensitive data within documents. It works by creating a digital fingerprint of a file, which can then be used to detect any copies or derivatives of that file. In this case, fingerprinting would allow the hospital to differentiate between the blank patient form, which can be freely shared, and the same form with patient information filled out, which is confidential1.

To retain the original dashboard without automatic updates due to improvements made by Netskope, you can download the desired dashboard and then import it from a file into your Group or Personal folder.
This approach ensures that you have a static version of the dashboard that won't be affected by future changes or enhancements. Reference:
The answer is based on general knowledge of dashboard management and customization within Netskope.

The reason for the activity being NULL in this scenario is likely becausea user accessed a static Web page.In Netskope's Advanced Analytics, when the activity is reported as NULL, it often indicates that there was no dynamic interaction or transaction to record, which is typical when a static web page is accessed1. Static web pages do not generate the kind of events or activities that are tracked by policies, hence they appear as NULL in the activity field.
This explanation is supported by the Netskope Knowledge Portal, which mentions that applications fields with null values indicate incidents generated from web traffic, such as accessing static web pages2.Further information on interpreting NULL values in Advanced Analytics reports can be found in the Netskope documentation1.

Netskope's Cloud Security Posture Management (CSPM) solution supports the creation of custom compliance rules using Domain Specific Language (DSL) across all three major public cloud providers: Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). This allows organizations to define bespoke security policies beyond the pre-built compliance benchmarks such as CIS, PCI-DSS, or HIPAA that come packaged with the platform. DSL-based custom rules give security architects the flexibility to encode organization-specific controls and automate posture assessment across multi-cloud environments. SSPM is a separate product focused on SaaS application posture management and is not a prerequisite or alternative for GCP custom rule creation within the CSPM module.