Nessus Professional is the most commonly-deployed vulnerability assessment solution across the industry.Here, agents take up minimal system resources within the hosts they are installed in, whilst still providing adequate malware protection. Consider environments that lack traditional malware protection, such as antivirus solutions - the overhead these agents exert within hosts is quite small. The application areas of these agents are wide. The agents enable scans to be carried out even when the hosts are offline. Nessus Agents provide a flexible way of scanning hosts within your environment without necessarily having to provide credentials to hosts.Tenable.io also allows for the customization of workflows for effective vulnerability management. Tenable also contains what was previously known as Nessus Cloud, which used to be Tenable’s Software-as-a-Service solution. It allows different teams to share scanners, schedules, scan policies and scan results.

Tenable.io is a subscription-based service.The following are the available options at your disposal: The tool is free for non-enterprise use however, for enterprise consumption, there are options that are priced differently.

How to use nessus for free