---
title: com.apple.security.hardened-process.dyld-ro
framework: bundleresources
role: symbol
role_heading: Property List Key
path: bundleresources/entitlements/com.apple.security.hardened-process.dyld-ro
---

# com.apple.security.hardened-process.dyld-ro

An entitlement that marks memory used for internal platform state as read-only.

## Overview

Overview When you add this entitlement to your app or extension with the value true, the kernel and dynamic loader ensure that all memory regions that the system uses to manage internal state are read-only. warning: Your app or extension crashes if it tries to write to the read-only memory regions; for example, if your code writes to memory in const data segments. Xcode adds this entitlement to your app or extension when you add the Enhanced Security capability. For more information, see Enabling enhanced security for your app. note: This entitlement requires the following entitlements: com.apple.security.hardened-process com.apple.security.hardened-process.enhanced-security-version-string

## See Also

### Hardened process

- [com.apple.security.hardened-process](bundleresources/entitlements/com.apple.security.hardened-process.md)
- [com.apple.security.hardened-process.enhanced-security-version](bundleresources/entitlements/com.apple.security.hardened-process.enhanced-security-version.md)
- [com.apple.security.hardened-process.enhanced-security-version-string](bundleresources/entitlements/com.apple.security.hardened-process.enhanced-security-version-string.md)
- [com.apple.security.hardened-process.hardened-heap](bundleresources/entitlements/com.apple.security.hardened-process.hardened-heap.md)
- [com.apple.security.hardened-process.platform-restrictions](bundleresources/entitlements/com.apple.security.hardened-process.platform-restrictions.md)
- [com.apple.security.hardened-process.platform-restrictions-string](bundleresources/entitlements/com.apple.security.hardened-process.platform-restrictions-string.md)
- [com.apple.security.hardened-process.no-guard-objects](bundleresources/entitlements/com.apple.security.hardened-process.no-guard-objects.md)