Resealed firewall carton
Dock inspection under SR-9 finds mismatched tape; device quarantined pending vendor verification.
Tamper Resistance and Detection
Medium Risk
Complex
Medium Cost
SR-9 requires employing tools and techniques to detect and resist tampering of system components throughout the supply chain lifecycle. Tampered appliances in transit, resealed packages, and modified field replacements threaten ePHI integrity before devices ever authenticate a user.
Control Objective
Detect and resist tampering of critical components across the healthcare supply chain — from shipping through installation and maintenance — with response when tamper is indicated.
Implementation Guidance
- Identify components requiring anti-tamper (boundary devices, HSMs, critical servers, certain clinical devices).
- Use tamper-evident packaging, seals, and secure shipping for critical items.
- Inspect on receipt (PE-16) for resealing or anomalies.
- Enable chassis/firmware tamper detection where available.
- Monitor for unexpected configuration/firmware changes post-install.
- Train receiving and install staff on indicators.
- Quarantine and investigate tamper indications.
- Coordinate with SA-18 and SR-10 inspection programs.
Real-World Use Cases
How this control shows up in healthcare and HIPAA-covered environments.
Unexpected firmware on delivery
Hash differs from vendor manifest. Install halted; authenticity/tamper investigation starts.
Maintenance cover left unsealed
Post-maintenance seal process restores tamper evidence on an EHR host.
Best Practices
- Tamper-evident logistics for critical gear.
- Receipt inspection.
- Runtime tamper detection.
- Quarantine process.
- Staff training.
- Align SA-18/SR-10.
Common Gaps & Violations
- Critical gear shipped like office supplies.
- No receipt inspection.
- Seals not reapplied after MA.
- Tamper alerts ignored.
- Field replacements unverified.
Required Documentation
- Supply-chain tamper resistance procedure (SR-9)
- In-scope component list
- Packaging/inspection standards
- Detection configurations
- Quarantine/investigation records
How to Test & Validate
- Sample critical receipts for tamper inspection evidence.
- Verify seals/packaging standards used.
- Review a tamper event response.
- Check post-maintenance reseal process.
- Confirm monitoring for firmware surprises.
Audit Considerations
Supply-chain tampering is practical against healthcare because gear moves through many hands. SR-9 evidence should show inspection and detection — not only policy.
HIPAA Mapping
How this NIST control supports HIPAA Security Rule expectations.
- 164.312(c) Integrity — tampered components threaten integrity of systems processing ePHI.
- 164.310(d) Device and Media Controls — control introduction of hardware.
- 164.308(a)(1) Risk Analysis — include physical supply tamper scenarios.
- 164.310(a) Facility controls — protect equipment from tampering onsite.
Compliance Tips
- Photo-document seals on tier-1 appliances at receipt.
- Require vendor manifests/hashes for firmware.
- Include SR-9 checks on maintenance closeout.
Frequently Asked Questions
How does SR-9 differ from SA-18?
Both address tamper; SR-9 emphasizes supply-chain lifecycle, SA-18 system component anti-tamper — run as one program if both IDs exist.
Do all USB cables need seals?
Risk-base to critical components that can alter ePHI system trust.
Is GPS tracking of shipments enough?
Helpful OPSEC/logistics control; still inspect for physical tamper on arrival.
References & Resources
- NIST SP 800-53 Rev. 5 — SR-9
- Related controls: SA-18, SR-10, SR-11, PE-16, SI-7
Related Guidelines
Related controls that commonly accompany SR-9.
Need Help Implementing SR-9?
Our auditors map NIST SP 800-53 controls to your HIPAA Security Rule program — policies, technical evidence, and audit readiness.