Security as a Service (SecaaS) includes services like spam filtering, authentication, web filtering, and intrusion detection, which are all designed to protect, detect, and respond to security threats in real-time. Provisioning, on the other hand, refers to the process by which resources or services are setup, prepared, and made available for use, and it does not fall under the scope of SecaaS. Therefore, provisioning is not an example of Security as a Service.