A financial institution shall provide the following disclosures, as applicable: (1) Liability of consumer. A summary of the consumer's liability, under § 1005.6 or under state or other applicable law or agreement, for unauthorized electronic fund. Nov 23, 2021 · Make sure to check the code on the back of the card. If the problem persists, you can attempt the transaction without entering the CVV2 or CID numbers. The transaction should then complete as normal. However, be aware that by not including the security code, the transaction may be flagged as fraudulent..