Installing Bitdefender on a Mac running Big Sur or above you are going to get the alert from gatekeeper Warning you of the System Extension Blocked. The Application is SecurityNetworkInstallerApp which is trying to load the system extensions. This will need to be enabled by open Privacy & Security in System Settings and click ok or allow depending on the screen. This is relatively simple on Macs ruing Ventura or below. However with some recent builds of Sonoma and Sequoia the App does not appear in security to allow you to authorise the app.
