# Enable Encryption of Change Events

After you create an event bus tenant secret, a setting becomes available in the Encryption Settings page that starts encryption of change events.

**Prerequisites:**

[Generate an Event Bus Tenant Secret](/docs/platform/change-data-capture/guide/cdc-security-shield-create-secret.md)

**Steps:**

1. From Setup, in the Quick Find box, enter `Platform Encryption`, and then select **Encryption Settings**.

2. Select **Encrypt Change Data Capture Events and Platform Events**.

:::note
When you enable encryption for change events, you also enable it for platform events. For more information, see [Encrypting Platform Event Messages at Rest in the Event Bus](https://developer.salesforce.com/docs/atlas.en-us.platform_events.meta/platform_events/platform_events_encryption.htm) in the *Platform Events Developer Guide*.
:::