Under the Security Rule, unauthorized access to PHI is restricted. It limits the use of unauthorized disclosure of ePHI to a great extent.
Implementing the HIPAA Security Rule also helps healthcare providers determine when, where, and how PHI is being accessed and by whom.
The Security Rule also provides an identity check for different individuals. With restrictions on unauthorized access to electronic PHI, it becomes easier to find out who is trying to access the PHI without authorization.
In other words, it is easier to monitor the actions of the individuals who are and are not in charge of ePHI.