Technology Reference
Column Masking
Data ProtectionMedium ComplexityLearning: Medium
Show different values to different users in the same column
// Guidance
Decision Guide
✓
When to Use
- →Have PII/PHI in columns (SSN, email, credit card, medical record numbers)
- →Different roles need different visibility (full, partial, none)
- →Need to share data broadly while protecting sensitive fields
- →Analysts need to join on sensitive fields without seeing actual values
- →HIPAA minimum necessary or GDPR data minimization requirements
✗
When NOT to Use
- →Users shouldn't see the data at all
- →Don't have Unity Catalog or a supported compute type
- →Performance is critical
// Related
Controls Using This Technology
1 controls use Column Masking for implementation.
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