SECURE VIRTUAL MACHINE MEMORY ALLOCATION MANAGEMENT VIA MEMORY USAGE TRUST GROUPS

Embodiments are disclosed for recycling memory among virtual machine instances in the same memory usage trust group. Memory scrubbing can be ordinarily performed to avoid data leakage between different customers. However, scrubbing can be inhibited when a given virtual machine reclaims memory previously released by another virtual machine in the same trust group. Further features, such as enabling and disabling trust groups can be supported. Control of the features can be accomplished via API calls as part of a web service.