There are {HEAD ~ a variety} of {TAIL ~ 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 other shared network site that should be precluded if the security requirements have been implemented by the merchant entity 
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There are { HEAD ~ a variety } of { TAIL ~ 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 other shared network site that should be precluded if the security requirements have been implemented by the merchant entity
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