Technologies related to continuous world switch security are generally described. In some examples, a world switch indicator may indicate whether continuous world switch security is on or off for a cloud customer. A hypervisor world switch security setting may be activated and deactivated, according to the world switch indicator, to optionally allow world switches and not context switches between virtual machines executed by a cloud server. Continuous world switch security may optionally be controlled by a cloud customer. Load balancing, cloud customer billing and other techniques are also disclosed to accommodate the activation/deactivation of continuous world switch security.