> ## 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           |       |