It is important to mention that "self-hosted" by itself, does not make one Prism-Free.
In most cases, if the hosting platform provider will be asked to provide access to the infrastructure, it is most likely that SSL private keys that stored on the virtual machine will be taken along with other data.
In most cases, if the hosting platform provider will be asked to provide access to the infrastructure, it is most likely that SSL private keys that stored on the virtual machine will be taken along with other data.