Once entered, the software communicates with Tenable’s activation servers to validate the key. Upon successful validation, the software downloads the necessary plugins and unlocks the administrative interface.
to buy a subscription. After payment, the activation code (license key) is sent to your registered email. Free Trial : If you want to test the features, Tenable offers a 7-day free trial nessus professional license key
: During the first installation of Nessus, the setup wizard will prompt you for an activation code. Selecting "Nessus Professional" and entering your key will register the scanner. nessus professional license key