The internal auditor obtained large volumes of transaction history data for accounts on which he...

The internal auditor carefully scrutinized the data by manually reviewing each transaction to ensure that all irregularities were identified.

The internal auditor employed the use of data analytics tools to sort, analyze, and detect anomalies in the data

The internal auditor started the data analysis process by selecting a random sample of transactions on which to perform further tests.

The internal auditor requested that the branch supervisor assist in identifying fraudulent transactions, as he was most familiar with the accounts being audited.