Verification
The procedure that contrasts two levels of system expectation for appropriate correspondence.
Vulnerability analysis
the regular and organized evaluation of systems in order to determine the capability of security measures, identify security shortages and impart data from which to predict the efficacy of the projected security measures. It is a procedure for maintaining Internet security and online security through making sure everything is secure on the server.
Vulnerability Assessment
A calculation of vulnerability including the vulnerability of a certain system to a explicit attack and the prospects accessible to a threat agent to mount that attack