Which security feature is available ONLY on a Mac with Apple silicon?

Kernel Integrity Protection (KIP) is a security feature that is unique to Macs equipped with Apple silicon. This advanced protection mechanism is designed to ensure that the kernel remains uncompromised by preventing unauthorized modifications and attacks. KIP functions by enforcing strict policies during the kernel's execution phase, leveraging the security architecture of Apple silicon, which integrates both hardware and software protections.

The implementation of KIP on Apple silicon reinforces the security model that begins at the silicon level and extends through the operating system. This is particularly important as it provides an additional layer of defense against malware and other malicious software that may attempt to exploit weaknesses in the system.

On the other hand, System Integrity Protection (SIP), FileVault 2 encryption, and Gatekeeper security are features that are available on both Intel-based Macs and those with Apple silicon. SIP protects system files and directories, FileVault 2 provides full disk encryption, and Gatekeeper ensures that only trusted software can run on the machine. These features are part of Apple's ongoing commitment to user security across its entire range of devices, but KIP represents a new level of protection that is exclusive to the architecture of Apple silicon.