A project consists of working on a payroll processing application and employee data of a customer has a dedicated offshore development centre $($ODC$).$ The customer has stringent data privacy requirements and imposed strict liabilities in the contract. Which of the following may lead to a personal data breach?

Clear Selection

a$.$ Employees are allowed to bring personal smart phones and unauthorized media in the ODC

b$.$ Data leakage prevention software is installed on all systems

c$.$ Access to any social networking or non$-$business website is blocked

d$.$ Shredder is used to securely destroy any paper or print out having project data