It is my understanding that any sort of cloud setup would be completely out. Also, anything with a web-browser or other platform that runs third party code. But

It is my understanding that any sort of cloud setup would be completely out. Also, anything with a web-browser or other platform that runs third party code. But that still leaves an awful lot of servers that are under the control of a single company or individual and don't run any untrusted code (sandboxed or otherwise), doesn't it?