Merchant Level Categories
There are 4 merchant level categories that determine the scope of compliance for each business. The category into which a merchant falls under is based on their annual electronic card transaction volume.
Although Level 4 merchants conduct the fewest transactions, they make up 99% of US businesses who process credit cards, rendering them the most vulnerable to hackers. Due to this fact, and the fact that more Level 4 merchants are now using integrated POS systems connected to high-speed Internet connections, auditors are focusing more attention on these merchants.« Back