# Custom sensitive information types are configured
Custom sensitive information types (SITs) extend Microsoft Purview's ability to detect sensitive information beyond the built-in SITs to cover…
Source: https://maester.dev/docs/tests/ZTA.35033
## Overview
Custom sensitive information types (SITs) extend Microsoft Purview's ability to detect sensitive information beyond the built-in SITs to cover organization-specific data patterns, proprietary identifiers, internal classification schemes, specialized industry codes, or other formats that built-in SITs don't look for. Use them to create tailored detection rules that align with your organization's unique data protection needs, ensuring that more sensitive information is accurately identified and protected.
## Remediation
- [Create custom sensitive information types](https://learn.microsoft.com/purview/create-a-custom-sensitive-information-type?wt.mc_id=zerotrustrecommendations_automation_content_cnl_csasci)
## Run it
The check runs as part of the whole assessment, with the ZeroTrustAssessment module installed:
```powershell
Install-Module ZeroTrustAssessment -Scope CurrentUser
Connect-Maester
Invoke-Maester -Pack ZTA -SkipBuiltIn
```
Leave out `-SkipBuiltIn` to run Maester's own checks in the same run.
About this check
| | |
| --- | --- |
| Severity | High |
| Effort to fix | High |
| Impact on users | Medium |
| Pillar | Data, AI |
| Category | Advanced Classification |
| Product | [Purview](/docs/tests/products/purview) |
| Feature | Data classification |
| Area | Data protection |
| Licence | EXCHANGE_S_ENTERPRISE |
| Tenant | Workforce |
Product, feature, area and ATT&CK are Maester's: the assessment does not record them, so Maester keeps them in the pack's `taxonomy.json`.