Nessus provides a free, powerful, up-to-date, and easy-to-use remote security scanner. It is designed to remotely audit a given network and determine whether it is vulnerable to hackers or other types of malicious attacks. Nessus will detect all used ports and physically test their security. It does not make its security assessment based on the version number of the remote services, but will actually attempt to exploit the vulnerability.
Full Specifications
What's new in version 6.7
General
ReleaseJuly 18, 2016
Date AddedJuly 18, 2016
Version6.7
Operating Systems
Operating SystemsMac OS X 10.11, Macintosh, Mac OS X 10.9, Mac OS X 10.10, Mac OS X 10.8