LightBurn has paid the money and is currently a Verified Windows Developer, but have not gone through this process with Apple for our Mac product. The product is safe to use and is virus/malware scanned prior to download.
Go to ‘Apple Icon’ (upper-left most menu)→’System Preferences’, then click ‘Security & Privacy’. This will display a window that will allow you to override this message and allow you to continue with this installation.