| As information about new vulnerabilities are discovered and released into the general public domain, Tenable's research staff designs programs to enable Nessus to detect the presence of them. These programs are named 'plugins' and are written in the Nessus Attack Scripting Language (NASL). The plugins contain vulnerability information, a generic set of remediation actions and the algorithm to test for the presence of the security issue. In some cases, one plugin may depend upon another. Typically, Tenable Network Security produces plugins for vulnerabilities within 24 hours of its public release.
ProfessionalFeed and HomeFeed
Two feeds are available - the ProfessionalFeed and the HomeFeed. These feeds are available only for use with a copy of Nessus provided by Tenable.
A 'ProfessionalFeed' can be used commercially. It offers vulnerability updates, support and more. Customers who purchase a Tenable Security Center receive access to this feed with their annual product maintenance.
A 'HomeFeed' is available for free to home users, but can not be used professionally.
Comparison matrix
Pricing
Pricing for the 'ProfessionalFeed' is based upon the number of Nessus in use within your organization, consultancy or service. The cost is $1,200 per scanner per year. For more information, please contact Tenable's sales staff or go to our e-commerce site
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