> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mezmo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Presence of Personally Identifying Information (PII)

> Example alert that triggers when the Redact Processor detects PII such as SSNs, email addresses, or custom patterns in telemetry data.

This alert is triggered when the [Redact Processor](/telemetry-pipelines/redact-processor) has the option `Mask PII Presence `set to `On` and a social security number, email address, or custom-defined pattern of PII is detected in the telemetry data.

## General Configuration

| Field | Value |
| - | - |
| Name | PII Data Present |
| Description | Triggers when the metadata field `pii_presence` contains a `yes` value for any of the pre-set or custom PII types. |

## Evaluation and Condition Configuration

| Field | Value |
| - | - |
| Operation | |
| Window Type | |
| Window Duration (minutes) | |
| Group by Field Paths | |
| Operation | |
| Window Type | |
| Window Duration | |
| Conditional Statement | |
| Event Timestamp | |