All entities involved in card processing must be compliant with Payment Card Industry Data Security Standard (PCI DSS). Your PCI compliance scope is significantly reduced if you are leveraging our client-side encryption (CSE) or hosted payment page (HPP) solutions.
If you are using the client-side encryption solution, you can validate your PCI compliance with Self-Assessment Questionnaire (SAQ) A.
For point of sale, all Adyen terminals are PCI PTS certified. You can validate your PCI compliance with SAQ B-IP.