HIPAA Audit Log Review Policy Template for Critical Access Hospitals

Use this template to document how your Critical Access Hospital (CAH) reviews information system activity involving electronic protected health information (ePHI). Adapt the suggested controls and review schedule to your hospital’s risk analysis, systems, and incident response procedures. Replace bracketed text with your hospital’s details. This template is a starting point, not a certification of HIPAA compliance.

What HIPAA requires for audit log review at Critical Access Hospitals

If your CAH is a HIPAA covered entity, the Security Rule requires it to implement procedures to regularly review records of information system activity, including audit logs, access reports, and security incident tracking reports. It also requires hardware, software, and/or procedural mechanisms that record and examine activity in information systems containing or using ePHI. See 45 CFR § 164.308(a)(1)(ii)(D) and 45 CFR § 164.312(b).

The regulations require regular review but do not prescribe a universal review frequency or a single set of audit-log fields. Set the hospital’s process based on its risk analysis, system capabilities, and operational needs. HHS describes these requirements and their flexible, risk-based application in its HIPAA Security Rule guidance.

Policy statement: [Hospital name] will record and regularly review information system activity to help identify inappropriate access to ePHI and possible security incidents. The [Security Officer or designated role] will maintain this policy, coordinate reviews, and ensure findings are documented and escalated under the hospital’s incident response procedures.

Which systems and ePHI activities should be covered

Maintain an inventory of systems that create, receive, maintain, or transmit ePHI, then identify which systems can generate activity records and how those records will be reviewed. Consider both hospital-managed and vendor-hosted systems used for clinical, administrative, and technical functions.

• Electronic health record, patient portal, health information exchange, and clinical applications.
• Laboratory, pharmacy, radiology, imaging, and other diagnostic systems.
• Billing, scheduling, claims, and health information management systems.
• Email, file storage, collaboration tools, and systems that transmit or store ePHI.
• Identity and access management, remote access, network, server, workstation, and security-monitoring systems where their activity is relevant to ePHI access or system security.
• Cloud services and business associate systems, as applicable to the hospital’s risk management and contractual arrangements.

Define which actions to examine based on system capabilities and risk. Examples include successful and failed logins, patient-record access, searches, viewing or modifying records, exports or downloads, privilege changes, account creation or termination, remote access, emergency “break-glass” use, and changes to audit settings. Not every system will record every event; document significant gaps and how the hospital addresses them.

How often should audit logs be reviewed

HIPAA requires regular review but does not set one fixed interval for every hospital or system. HHS notes that the Security Rule does not specify how often audit reports must be reviewed; the frequency should reflect risk and organizational circumstances. See the HHS OCR cybersecurity newsletter on audit controls.

Suggested schedule to adapt:

• Promptly: Triage high-severity security alerts and reports of suspected unauthorized access under the incident response process.
• At least monthly: Review selected access reports and exception reports for high-risk systems, such as the EHR and systems with especially sensitive ePHI.
• At least quarterly: Review trends, privileged access, emergency access, and whether the review scope and frequency remain appropriate.
• After a significant change or incident: Reassess relevant logging and review procedures after a major system change, newly identified threat, or security incident.

These intervals are policy recommendations, not federal minimums. [Hospital name] will set and record its approved schedule for each system or system group in the review inventory. If a scheduled review is delayed or cannot be completed, the assigned reviewer will document the reason, notify [Security Officer or delegate], and set a completion date.

Who is responsible for reviewing and escalating suspicious activity

Assign named roles and backups so reviews continue during nights, weekends, staff absences, and other periods when a small CAH may have limited on-site resources.

• Security Officer: Owns the policy, approves the review schedule, ensures reviewers are assigned and trained, and coordinates security incident escalation.
• IT or security reviewer: Retrieves and reviews system activity records, documents the review, preserves relevant evidence, and escalates anomalies.
• System owner or department leader: Helps determine whether access or activity has a legitimate operational explanation and supports corrective action.
• Privacy Officer: Assesses potential impermissible uses or disclosures and coordinates any applicable Privacy Rule or breach-notification analysis.
• Incident response team or designated leadership: Coordinates containment, investigation, mitigation, and follow-up under hospital procedures.

Where feasible, the person reviewing a system’s activity should not be the only person who administers that system. Escalate potential security incidents promptly through the hospital’s established reporting channel. HIPAA requires covered entities to identify and respond to suspected or known security incidents, mitigate harmful effects to the extent practicable, and document incidents and outcomes. See the HHS guidance on security incident procedures.

What to document for each audit log review

Use a consistent review record so the hospital can show what was examined, who performed the review, what was found, and how exceptions were handled. The record may be electronic or written, with access restricted to authorized personnel.

• Review date, time, and reporting period.
• Reviewer’s name, role, and approval or sign-off.
• Systems, log sources, reports, users, or event categories covered.
• Review method, including any filters, samples, thresholds, or automated alerts used.
• Results, including “no exceptions identified” when applicable, and any limitations or unavailable records.
• Potentially suspicious activity, associated case or ticket number, escalation date, and the roles notified.
• Investigation outcome, corrective action, follow-up owner, and closure date, if applicable.

The HIPAA Security Rule requires documentation of policies and procedures and written or electronic records of actions, activities, or assessments that the Rule requires to be documented. The HHS audit protocol also identifies review documentation, review frequency, responsible roles, and activities requiring investigation as relevant evidence. See 45 CFR § 164.316 and the HHS OCR Audit Protocol.

How to protect and retain audit records

Restrict access to audit logs and review records to personnel with a legitimate need. Use appropriate safeguards to help prevent unauthorized access, alteration, or deletion. As a risk-based policy measure, consider protected storage separate from the systems being monitored, access logging for the audit repository, backups, and controls that make unauthorized changes detectable. Document any retention or integrity limitations in a system’s review plan.

Retain Security Rule documentation for six years from its creation or from the date it was last in effect, whichever is later, as provided by 45 CFR § 164.316(b)(2)(i). Do not assume this means HIPAA expressly requires every raw technical log to be kept for six years. Set raw-log retention periods based on risk, investigation needs, applicable legal or contractual requirements, and the hospital’s records-retention schedule; preserve relevant records when an investigation or legal hold requires it.

What events require investigation and follow-up

Reviewers should escalate activity that is unexplained, inconsistent with assigned duties, or potentially unauthorized. Examples include:

• Repeated failed logins, unusual login times or locations, or access using a disabled or unexpected account.
• Access to records without an apparent treatment, payment, operations, or other authorized purpose.
• Unusual searches, bulk viewing, exports, downloads, printing, or access to many patient records in a short period.
• Emergency “break-glass” access without a documented operational reason or required follow-up.
• Unexpected privilege changes, new accounts, shared-account activity, or attempts to disable or alter logging.
• Evidence of malware, unauthorized system changes, data exfiltration, or interference with system operations.

For each concern, preserve relevant records, document the initial facts, and promptly notify the designated security or privacy contact. The investigation should establish whether the activity was authorized, identify affected accounts and systems, assess whether ePHI was accessed or disclosed, and record containment, mitigation, and corrective actions. An alert or anomalous log entry is not by itself a determination that a breach occurred; route the facts to the appropriate privacy and security personnel for assessment under the hospital’s incident and breach-response procedures.

In summary, a workable CAH policy identifies the systems and activity to review, sets a documented risk-based schedule, assigns accountable reviewers, records results, protects review evidence, and provides a clear path to investigate and escalate suspicious events.

FAQs

How often should a Critical Access Hospital review HIPAA audit logs?

HIPAA requires regular review but does not prescribe a universal interval. Set a risk-based schedule for each system or system group, document it, and promptly triage significant alerts or suspected incidents. Monthly or quarterly review intervals may be useful policy choices, but they are recommendations rather than federal minimums.

Which systems must be included in the audit log review policy?

Identify systems that contain or use ePHI and the records of activity available for those systems. Depending on your hospital’s environment, this may include the EHR, clinical and diagnostic applications, billing systems, email and file storage, identity and access tools, remote access, and relevant vendor-hosted services. Use the hospital’s risk analysis and system inventory to define the scope.

What information should be documented after each review?

Record the review date and period, reviewer, systems and reports examined, method used, findings or confirmation that no exceptions were identified, limitations, escalations, case numbers, investigation results, corrective actions, and closure or follow-up status.

How should suspicious access activity be investigated and escalated?

Preserve relevant records, document the initial concern, and promptly notify the designated security or privacy contact under the hospital’s incident response process. Investigate the user, system, records, timing, and apparent purpose; assess potential ePHI impact; and document containment, mitigation, and follow-up. Refer potential impermissible uses or disclosures for appropriate privacy and breach assessment.