---
schema_version: "1"
id: 25b247c88ffcefa7de3332d641763569682e8f1049e7a18d3658702a71d3d9c6
title: TLS Trust and Marketing Cloud Personalization
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_pers_integration_tls_trust.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_pers_integration_tls_trust.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 7d837a45eeddc4cb9f7480934de06c0164c2928e9ee2fd2d43e03ff89e51383c
description: Marketing Cloud Personalization always employs SSL/TLS and rotates its certificates regularly. All Marketing Cloud Personalization certificates chain to Certificate Authorities (CAs) included on the Mozilla Server Authentication (SSL/TLS) Root Certificates list.
products:
  - Marketing
  - Salesforce Personalization
release: "264"
---
# TLS Trust and Marketing Cloud Personalization

Marketing Cloud Personalization always employs SSL/TLS and rotates its certificates regularly. All Marketing Cloud Personalization certificates chain to Certificate Authorities (CAs) included on the Mozilla Server Authentication (SSL/TLS) Root Certificates list.

Marketing Cloud Personalization doesn't support TLS certificate pinning. TLS certificate pinning is a security technique where only a specific TLS certificate is trusted. Pinning is an outdated security practice that adds operational complexity and risks outages.

If you have an insurmountable need to pin a certificate, create a pinset that contains the entire [Mozilla Server Authentication (SSL/TLS) Root Certificates](https://www.ccadb.org/resources) list.

#### See Also

- [About Integrating Marketing Cloud Personalization with Other Systems](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_integration_about.htm&release=264.0.0&type=5 "Use standard and custom integrations to pull and push data between Marketing Cloud Personalization and other systems.")
- [_Developer Documentation:_ Marketing Cloud Personalization Event API](https://developer.salesforce.com/docs/marketing/personalization/guide/event-api.html)