Q

QSA – Qualified Security Assessor – is the individual or organisation that is formally qualified and licensed to carry out independent audits of compliance to the PCI DSS of Level 1 merchants – those that process one million or more payment card transactions every year. You can find QSAs online: www.pcisecuritystandards.org/qsa_asv/find_one.shtml. A PA-QSA is a specialist QSA.

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