macOS security protections are Apple’s built-in controls that reduce the chance of malware running or persisting on a Mac. They include features such as Gatekeeper, app notarization checks, XProtect malware detection, sandboxing, and privacy permissions that limit access to files, cameras, microphones, and other sensitive resources. These controls raise the bar for attackers by blocking unsigned software, warning on risky apps, and restricting what a process can do once it starts.
In cyber security, these protections matter because they shape how malware must operate. They are effective against many commodity threats, but they do not stop every attack, especially when the user is persuaded to approve a prompt, run a command, or paste malicious text. That is why social-engineering attacks and browser-based session abuse can still succeed on protected Macs. Defenders should treat macOS protections as one layer, not a complete defense, and combine them with user awareness, least privilege, endpoint telemetry, and strong session controls.