OIG reviews MassHealth and its Medicaid data and information system safeguards

MassHealth failed to adequately safeguard data and information systems through its Medicaid Management Information System (MMIS) according to an audit by the HHS’ Office of Inspector General (OIG) undertaken to determine whether Massachusetts safeguarded MMIS data as required under federal requirements.

What is MMIS?

The MMIS is “an integrated group of procedures and computer processing operations (subsystems) developed at the general design level to meet principal objectives” which are: Title XIX program control and administrative costs; service to recipients, providers and inquiries; operations of claims control and computer capabilities; and management reporting for planning and control. States receive 90 percent federal financial participation (FFP) for design, development, or installation of MMIS and 75 percent FFP for operation of state mechanized claims processing and information retrieval systems.

MassHealth MMIS

The Massachusetts Executive Office of Health and Human Services is responsible for administering the state Medicaid program, commonly known as MassHealth, and information technology architecture, maintenance, and support is provided by the Massachusetts Office of Information Technology. Application support is provided through a contract with Hewlett-Packard.

The audit

Audits of information security controls are performed routinely on states’ computer systems used to administer HHS-funded programs and states are required to implement computer system security requirements and review them biennially. The OIG’s audit of MassHealth’s MMIS included MassHealth’s websites, databases, and other supporting information systems. The review was limited to security control areas and controls in place at the time of the visit. Specifically, the OIG looked at MassHealth’s implementation of federal requirements and National Institute of Standards and Technology guidelines regarding: system security plan, risk assessment, data encryption, web applications, vulnerability management, and database applications. Preliminary findings were communicated directly to MassHealth prior to the report’s issuance.

OIG’s findings

The OIG found MassHealth did not safeguard MMIS data and supporting systems as required by federal requirements. Vulnerabilities were discovered related to security management, configuration management, system software controls, and website and database vulnerability scans. Should exploitation of the vulnerabilities have occurred (and there was no evidence that it had), sensitive information could have been accessed and disclosed and operations of MassHealth could have been disrupted. Sufficient controls must be implemented over MassHealth Medicaid data and information systems.

Specific vulnerabilities uncovered were not detailed in the report because of the sensitive nature of the information. However, specific details were provided to MassHealth so it may address the issues. In response to the report, MassHealth described corrective actions it had taken or planned to take in response to the vulnerabilities.