What is a requirement for a bank transaction to remain secure?

For a bank transaction to remain secure, verification of identity is essential. This process ensures that the person initiating the transaction is indeed who they claim to be. Identity verification methods can include asking for identification, passwords, PINs, or biometric scans, all designed to prevent unauthorized access to accounts and safeguard personal information. By confirming the identity of the individual, banks can significantly reduce the risk of fraud, identity theft, and other security breaches, thus maintaining the integrity of the transaction and the security of the customer's assets.

Other aspects, such as keeping customer service records or balancing credits to debits, although important for operational functionality and financial health, do not directly contribute to the security of the transaction itself. Additionally, making transactions visible could actually compromise security by exposing sensitive financial information to unauthorized parties. Hence, identity verification stands out as the critical requirement for ensuring the security of bank transactions.