A native feature is a capability built directly into an application, rather than added later through a plug-in, extension, or separate tool. In browsers, apps, and operating systems, native features are part of the core product and usually share its permissions, settings, and update cycle.
In cyber security, native features matter because they can improve protection without extra software. Examples include built-in ad blocking, phishing warnings, sandboxing, or encryption settings. When a defense is native, it is often easier to deploy and less likely to be blocked by compatibility issues. But a native feature is not automatically effective: if it is disabled by default, hidden in settings, or poorly configured, users may never benefit from it. Attackers also watch for native defenses that can be bypassed, ignored, or turned off. For defenders, the key questions are whether the feature is enabled, visible, and maintained like the rest of the application.