Okay I just went and took a look... Indeed it doesn't show the same options. This is what I saw when I went to Startup Security Utility: (*) Full Security: En

Okay I just went and took a look... Indeed it doesn't show the same options. This is what I saw when I went to Startup Security Utility: (*) Full Security: Ensures that only your current OS, or signed operating system software currently trusted by Apple, can run. This mode requires a network connection at software installation time. ( ) Reduced Security: Allows any version of signed operating system software ever trusted by Apple to run. [ ] Allow user management of kernel extensions from identified developers [ ] Allow remote management of kernel extensions and automatic software updates There's no option to turn on or off a firmware password, instead I had to login with a local administrator account first before I could access anything under recovery options. There doesn't appear to be a way to set "No Security" as an option either. At least from the GUI. Maybe it's possible from Terminal somewhere. But it seems unlikely or undocumented for now. Edit: Here's the Apple documentation on this: https://support.apple.com/en-us/guide/mac-help/mchl768f7291/mac https://support.apple.com/en-us/guide/mac-help/mchl768f7291/... Regarding kernel extensions, there's also https://support.apple.com/en-us/HT210999 https://support.apple.com/en-us/HT210999 and https://support.apple.com/en-us/HT211860 https://support.apple.com/en-us/HT211860 Regarding macOS Recovery, there's https://support.apple.com/en-us/guide/mac-help/mchl82829c17/mac https://support.apple.com/en-us/guide/mac-help/mchl82829c17/...