Since the release of macOS 10.13 (High Sierra), third party kernel extensions are blocked by default and have to be permitted individually. New Macs with Apple Silicon (M1 and later) processors may have third party extensions entirely disabled by default.
Where can I permit the kernel extension used by NTFS for Mac?
During installation, you will be notified if our kernel extension is blocked and directed to bypass the restriction from within System Preferences.
The notice about blocked extensions will appear in the Security & Privacy section, on the General-tab:
Once you've clicked on the button labeled 'Allow', you will have to restart your computer.
If the notice to allow blocked software does not appear, you may be required to take extra steps, for example in the event you have third party extensions completely disabled on your Mac.
You can also contact us at firstname.lastname@example.org.