To make sure you're PCI-compliant, you're going to have to do a couple things. If you're a Level 1 merchant (accepting over 6 million credit card transactions per year), you need to have an Annual On-site Security Assessment and Quarterly Networks Scan performed by an approved vendor. If you're a Level 2 or 3 merchant (accepting between 20,000 and 6 million credit card transactions per year), you need to fill out the Annual Self-Assessment Questionnaire and have Quarterly Networks Scans performed by an approved vendor.
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