There are a variety of {HEAD ~ different techniques} know to those of skill in the art in effecting such a scan, including various techniques for testing for vulnerabilities in the Internet or {TAIL ~ other shared network site} that should be precluded if the security requirements have been implemented by the merchant entity 
There are a variety of { HEAD ~ different techniques } know to those of skill in the art in effecting such a scan , including various techniques for testing for vulnerabilities in the Internet or { TAIL ~ other shared network site } that should be precluded if the security requirements have been implemented by the merchant entity
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH