---
schema_version: "1"
id: 09a2029df91cda3d7bfd2b63b726591444fe3a4d9668edb809fea5b353290e71
title: Data at Rest Encryption in Marketing Cloud Engagement
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_overview_data_encryption.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_overview_data_encryption.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 29518d0e6fac62d32a747f8feaf92f1eef9ad95f2d1b9be6e0467653ca94456e
description: Use Data at Rest Encryption to help meet compliance and regulatory requirements without modifying application code. Contact your account executive for more information about enabling Data at Rest Encryption.
products:
  - Marketing
  - Marketing Cloud Engagement
release: "264"
---
# Data at Rest Encryption in Marketing Cloud Engagement

Use Data at Rest Encryption to help meet compliance and regulatory requirements without modifying application code. Contact your account executive for more information about enabling Data at Rest Encryption.

Data at Rest Encryption protects the underlying files stored in the file system. This feature is transparent to Marketing Cloud Engagement and doesn’t impact any application-level features. Data is presented as plain text while encrypting the underlying file system. This feature doesn’t use application-layer or field-level encryption.

Data at Rest Encryption performs I/O encryption and decryption of data and log files. This process has a minimal impact on performance. This feature uses standard AES 256 encryption keys, which are stored separately from the data to provide physical isolation.

![Important](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_marketing_cloud_overview-264-0-0-production-enus/2555afdb-8049-4e3c-8043-0e04803e5f16/images/icon_important.png)

Important Data at Rest Encryption doesn’t encrypt the data used by Predictive Intelligence and Audience Builder.