3.2.2 For a sample of system components, examine data sources, including but not limited to the following, and verify that the three-digit or four-digit card-verification code or value printed on the front of the card or the signature panel (CVV2, CVC2, CID, CAV2 data) is not stored under any circumstance:
Incoming transaction data
All logs (for example, transaction, history, debugging, error)
History files
Trace files
Several database schemas
Database contents