The Security Rule protects a subset of information covered by the privacy rule, and sets the standard for the protection of electronically stored and transmitted PHI (ePHI). It does so by requiring the implementation of administrative, technical, and physical safeguards.
Complying with the security rule demonstrates that you are committed to protecting the confidentiality, integrity, and security of ePHI, and have taken the necessary steps to protect your systems from security threats and unauthorized disclosures.