You can set up a Palo Alto Networks firewall to submit unknown samples to one of the Palo Alto Networks-hosted WildFire public clouds, the U.S. Government cloud, a locally-hosted WildFire private cloud, or enable the firewall to forward certain samples to one of the WildFire public cloud options and certain samples to a WildFire private cloud:

WildFire Public Cloud

WildFire Private Cloud

WildFire Hybrid Cloud

WildFire: U.S. Government Cloud