A cloud infrastructure security assurance service is enhanced to facilitate bursting of cloud applications into other cloud infrastructures. The security assurance service provides a mechanism to enable creation and management of secure application zones within a cloud infrastructure. When the security assurance service receives an indication that a workload associated with a cloud application triggers a cloud burst, the service is extended into a new cloud infrastructure. Once the security assurance service is instantiated in the new cloud infrastructure, it identifies the broad security requirements of the application, as well as the security capabilities of the new environment. Using this information, the security assurance service computes a minimal security environment needed by the cloud application for the burst operation. The security assurance service then configures the necessary topology in the new cloud environment, and the burst operation is then completed by having the cloud application deployed in that topology.