Your first assignment as the internal auditor is to analyze and propose appropriate controls for the four (4) main threats identified below:

Threat 1: A purchasing agent adds a new record to the supplier master file. The company does not exist. Subsequently, the purchasing agent submits invoices from the fake company for various cleaning services. The invoices are paid.

Threat 2: Writing off a customer's accounts receivable balance as uncollectible to conceal the theft of subsequent cash payments from that customer.

Threat 3: A programmer obtained the payroll master file and increased his salary

Threat 4: Shipping goods to a customer but then failing to bill that customer se

Required: Write a report to the chief financial officer, Mr xyz, and discuss the threats and propose appropriate controls for each threat .