Ace the Apple Certified Support Pro Test 2026 – Unleash Your Tech Superpowers!

macOS ensures that executable memory pages remain secure primarily through code signature checks. When an application is run, the operating system verifies that it has a valid code signature. This signature is created by the developer and serves as a proof of integrity and authenticity. If the code has been altered or is from an untrusted source, macOS will prevent it from executing. This mechanism helps protect against the execution of malicious code, as it ensures that only software that has been verified can be executed in memory. By enforcing these checks, macOS helps maintain the integrity of executable files and protects the system from potential exploits that could arise from untrusted code.

While other mechanisms, such as application sandboxing and regular software updates, contribute to overall system security, they do not specifically focus on the integrity of executable memory pages in the manner that code signature checks do. Application sandboxing restricts applications' access to system resources, while regular software updates patch known vulnerabilities but don't specifically address executable memory security. Built-in antivirus software aids in detecting and removing malware but does not directly relate to the execution integrity of memory pages.