Control Objective 2: Cryptographic keys used for PIN encryption and decryption and related key management are created using processes that ensure it is not possible to predict any key or determine that certain keys are more probable than others – PCI PIN Security
PCI PIN Security 6-3.5: PCI PIN 6-3.5
What does 6-3.5 require?
Monitoring is continuous so that alarms are resolved by authorised people at any hour.
Other controls in Control Objective 2: Cryptographic keys used for PIN encryption and decryption and related key management are created using processes that ensure it is not possible to predict any key or determine that certain keys are more probable than others – PCI PIN Security