Tenable Network Security today announced the release of Nessus 3 for the Windows, Mac OS X and Solaris platforms. Improvements in Nessus 3 include: increased performance; Scan Policy creation and management; access to over 10,000+ quality vulnerability checks with vulnerability update subscription options from Tenable Network Security; support for CVSS (Common Vulnerability Scoring System); the ability to audit Windows, Unix, Linux hosts, and more.