Many organisations accepting card payments see SAQ A as the target operating model, as this has the most effect on reducing the PCI DSS requirements with which an organisation must comply. It does not come without risks though, as the third-party service providers you have engaged with must always maintain their compliance to support yours.
So, what remains the same, and what has changed with the arrival of PCI DSS v4.0? The first blog of this series explained the core format changes for all the SAQs, here we turn to the specifics around SAQ A.