How does GSI differ from a Qualified Security Assessor (QSA) or scan vendor?
A. GSI is a service provider that allows a merchant to offload the duties that a QSA would require be accomplished. A QSA assesses the compliance of your systems. GSI facilitates the compliance of your systems. Scan vendors provide a single service to cover a single PCI DSS requirement. GSI provides services that fulfill all IT security controls required by the PCI DSS requirements.
