r details, see
<a href="security-labels.html#hcs">Security: HCS vocabulary</a>.

</p>

<a name="audit"></a>
<h4>
Audit Logging
</h4>

<p>

<em>Use case:</em> "A FHIR server should keep a complete, tamper-proof log of
all API access and other security- and privacy-relevant events".

</p>

<p>

<em>Approach:</em> FHIR provides an AuditEvent resource suitable for
use by FHIR clients and servers to record when a security or privacy relevant
event has occurred. This form of audit logging records as much detail a