A method for implementing a security risk assessment for a merchant entity having {TAIL ~ connectivity} to {HEAD ~ a shared network}, the method comprising: 
A method for implementing a security risk assessment for a merchant entity having { TAIL ~ connectivity } to { HEAD ~ a shared network } , the method comprising :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH