Abstract: One embodiment relates to a method for monitoring the security of a virtual machine hosted by a host system, the virtual machine comprising an operating system communicating with a hypervisor of the host system. The hypervisor interfaces between the operating system and hardware resources of the host system. The method comprises receiving at least one machine instruction corresponding to an interruption in the operating system, said interruption following an event having occurred in the virtual machine and executing the instruction by the hypervisor using the hardware resources of the host system and transmitting to the operating system a data stream including the result of the execution. The sent data stream is duplicated in a second stream and the second stream is analyzed by a security agent running on an entity separate from the virtual machine in order to detect a security problem during the processing of the interruption.

Abstract: One embodiment relates to a method for monitoring the security of a virtual machine hosted by a host system, the virtual machine comprising an operating system communicating with a hypervisor of the host system. The hypervisor interfaces between the operating system and hardware resources of the host system. The method comprises receiving at least one machine instruction corresponding to an interruption in the operating system, said interruption following an event having occurred in the virtual machine and executing the instruction by the hypervisor using the hardware resources of the host system and transmitting to the operating system a data stream including the result of the execution. The sent data stream is duplicated in a second stream and the second stream is analyzed by a security agent running on an entity separate from the virtual machine in order to detect a security problem during the processing of the interruption.

Abstract: A method is provided for supervising security of an architecture having a plurality of interconnected clouds. A cloud includes a plurality of resources and a security supervisor. The plurality of resources forms in the cloud a plurality of groups of resources associated respectively with a security domain. A security controller supervises the resources of the domain, and a plurality of physical machines contains the resources of the plurality of clouds. The method includes: receiving a security event by a security controller of a first cloud, originating from a first resource associated with a first security domain; dispatching said security event to the security supervisor of the first cloud; and dispatching by the security supervisor of the first cloud a security order in reaction to the security event to at least one second security controller of the first cloud and dispatching the security order by the second security controller to a second resource supervised by the second controller.

Abstract: A method is provided for supervising security of an architecture having a plurality of interconnected clouds. A cloud includes a plurality of resources and a security supervisor. The plurality of resources forms in the cloud a plurality of groups of resources associated respectively with a security domain. A security controller supervises the resources of the domain, and a plurality of physical machines contains the resources of the plurality of clouds. The method includes: receiving a security event by a security controller of a first cloud, originating from a first resource associated with a first security domain; dispatching said security event to the security supervisor of the first cloud; and dispatching by the security supervisor of the first cloud a security order in reaction to the security event to at least one second security controller of the first cloud and dispatching the security order by the second security controller to a second resource supervised by the second controller.