---
title: Security - iOS (classic)
description: Data transfer and security information
lastUpdated: 16 March 2026
source_url:
  html: https://docs.contentsquare.com/en/ios/security/
  md: https://docs.contentsquare.com/en/ios/security/index.md
---

> Documentation index: https://docs.contentsquare.com/llms.txt
> Use this file to discover all available pages before exploring further.

The latest CSQ SDK is here! Learn how to [upgrade your app](https://docs.contentsquare.com/en/csq-sdk-ios/experience-analytics/upgrade-from-cs-sdk/).

The iOS SDK is designed with security and privacy in mind.

## Transmission and hosting

Our server uses HTTPS to make sure that data is encrypted in transport. Our hosting solution is a PCI DSS Level 1 Service Provider.