Answer:
Segregation of duties
Lack of computerized system
Explanation:
One obvious internal control weakness in the scenario given is segregation of duties. This is defined as the breaking down of a critical line of task into different stages with different individuals handling different stages of the task.
The aim is to prevent error and fraud as the action performed by an individual is subjected to review by another person and as such makes it impossible for an individual to cover up a fraudulent act except there is collision with others .
A computerized system which is the use of accounting software can also be used to integrate the function to increase the accuracy and speed of completion
The risks involved are