PII Data Hashing

PII Data Hashing

This transformation hashes sensitive personal data (PII) like email, phone numbers, etc. using SHA-256 to protect user privacy.

Configuration

OptionDescription
Properties to Hash
Type: string
Required: True

Comma-separated list of property paths to hash (e.g. "$ip,$email,$set.$phone")

Hash Distinct ID
Type: boolean
Required: False

Whether to hash the distinct_id field

Salt
Type: string
Required: False

Optional salt to add to the hashed values for additional security

Using our REST API you can create this transformation like so:

Terminal
# Create a new destination
curl --location 'https://us.i.posthog.com/api/environments/:project_id/hog_functions' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer <POSTHOG_PERSONAL_API_KEY>' \
--data '{
    "type": "transformation",
    "name": "PII Data Hashing",
    "inputs": {
        "propertiesToHash": {
            "value": ""
        }
    },
    "enabled": true,
    "template_id": "template-pii-hashing"
}'