information security, computer science homework help

I need to have at least one page to define the threat based on the scenario below. and i will give the key of the threat so u can write based on. 

A bank clerk stole money from a customer’s account. The clerk changed the customer’s address to his own, issued an extra card for the account (which he received), and then changed the address back again. He withdrew money from ATMs. The customer did not notice the thefts for a long time because of  the way the bank’s system worked: When a customer gets a statement from an ATM (as the clerk always did), that  transaction did not appear on the statement that was mailed.  

  What is the threat?

  * Bank Clerk

  * theft from accounts

  * Tampering with accounts

  * misuse of authority, access

    * Employee not honest 

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