The article discusses protecting SSH keys using the macOS Secure Enclave, a native approach that utilizes Touch ID for added security without relying on third-party apps. To set it up, users must create a Secure Enclave key, export the key handle, configure SSH to use the Secure Enclave provider, and obtain their public key. This method provides an additional layer of security, as SSH keys are no longer stored in a file and are instead protected by the Secure Enclave, requiring Touch ID authentication for use, thereby preventing malicious scripts from accessing them and reducing the risk of unauthorized server access.