1. In a computer, a method for monitoring and protecting multiple instances of a contained process execution environment, wherein each of the multiple instances accesses emulated resources of the computer, the method comprising: executing, on the computer, at least one security application that monitors each of the multiple instances of a contained process execution environment to detect harmful processes, wherein the at least one security application executes external to the multiple instances of a contained process execution environment; and facilitating scanning of virtual resources of the each of the multiple instances of a contained process execution environment by the single set of security applications, wherein the virtual resources include the emulated resources of the computer, and wherein the facilitating includes configuring the set of security applications to be aware of the resources as perceived by a primary operating system of the computer.