Conditional Masking

Apply masking transformations selectively based on conditions.

Overview

Conditional masking allows you to mask data based on specific criteria. This is useful when you need to:

Mask only certain rows (e.g., European customers for GDPR)
Apply different transformations based on data values
Preserve some data while masking others

Basic Conditional Masking

Use the where parameter to specify conditions:

transformations:
  - columns: ["email"]
    params:
      type: person_generator
      column_templates: ["${email}"]
    where: "country = 'DE'"  # Only mask German customers

Multiple Conditions

Combine conditions using SQL syntax:

transformations:
  - columns: ["ssn"]
    params:
      type: finance_generator
      column_templates: ["${us_routing_number}"]
    where: "age > 18 AND country IN ('US', 'CA')"

See Also