Frequently used terms
Understand the terms and acronyms that are used in PCI DSS and IBM® Safer Payments.
Cardholder data
- Primary Account Number (PAN)
- Cardholder name
- Expiration date
- Service code
Sensitive authentication data
- Full magnetic stripe data or equivalent on a chip
- CAV2
- CID
- CVC2
- CVV2
- PINs
- PIN blocks
Note: Sensitive authentication data is not required by IBM Safer
Payments for full operational
functionality. Supplying systems must be configured in a way that they do not send such data to IBM Safer
Payments. If you send such data to IBM Safer
Payments, your installation is not PCI DSS compliant.
Interfaces and data storage
- CDC
- Computational Data Cache
- DDC
- Disk Data Cache
- EMC
- External Model Component
- MCI
- Message Command Interface
MCI connects IBM Safer Payments to authorization systems, card management systems, and related data sources.
- MDC
- Memory Data Cache
IBM Safer Payments uses two types of data stores: DDC (on disk) and MDC (in memory). It maximizes data in MDC to accelerate real-time operations. On startup, data is loaded from disk into memory (
priming
). - SCI
-
Status Control Interface
The SCI interface is used exchange status information and to dispatch control commands between IBM Safer Payments instances in a cluster. It is the only IBM Safer Payments interface that cannot be deactivated.