SilentKnight - Free Security Checks for Your Mac

SilentKnight from The Eclectic Light Company is a free utility to check the security settings of your Mac. it will let you know of any uninstalled security upadtea you may be missing and offer to download and install them from you. It's often better to run these updates from Software Update in System Settings so you can set SilentKnight to inform onlu mode and it will allow you to download security updates that way.

Silent Knight covers firmware, security settings and data files, and now checks macOS malware scans. It will let you know how often the bulit-in macOS malware scanner has run in the past 24 hours. SilentKnight has both a summary Help page and a detailed reference. The most recent update improves compatibility with Sequoia. There are versions available for download for older versions of macOS.

Don't be alarmed if SilentKnight says you have reduced security. two features that are off by default can cause this: file vault and secure boot.

You can get the app at the developer's website and check the entire arsenal of security freeware that is offered there.