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A Guide to PCI DSS Merchant Levels and Penetration Testing
By Tripwire Guest Authors on Tue, 02/27/2018
To distinguish the size of merchant companies and appropriately determine the level of testing required, the founding credit card companies created four different brackets ranging from Tier 1 to 4. Each tier is based on the number of transactions processed per year by the merchant and also dictates the testing a merchant must undertake. While...