Principle 2: CLIENT
AND EMPLOYER point 2.03 because they are using customer's information without their consent They have also
 violated principle
point 2.04 where they directly use the data without any approval by the
 relevant
authorities. They should be more integrated in managing customer data and their
 managers supposed
to monitor the data Now in the organization to reveal any risky operation.

 

Principle 7: COLLEAGUES, is the most helpful to avoid the occurrence of this incident. Because in this code, it encourage colleagues to adhere to this code
 and assist
colleagues in professional development that will help to motivate the employee
 From point 7.06, it
should be apply so that the employee is fully aware of the current standard
 work practices
including policies and procedures for protecting passwords, files and other confidential information, and security measure in general. From this principle alone it can prevent incident from happening 

1.    For the article crisis in T-Mobile 2016, it was breaking the principle 1:
 especially on point
1.03, 1.04 and 1.06. T-Mobile disclose to non-appropriate persons, that is
 why the T-Mobile
employee stole the customer data.

2.    T-Mobile also break principle 2 which is employee used the property of a client without authorize and not with the customer's knowledge and consent.

3.    from the principle 7: 7.01, employee should encourage their
 colleagues to adhere
to this code