1. A network system, comprising: a first device to maintain an original resource; a second device to maintain a replica resource remotely from the first device, the replica resource being replicated from the original resource; memory to store a cached descriptor corresponding to the original resource; a security component to determine whether the replica resource will pose a security risk to the second device upon receipt of a request for the replica resource, the security component: formulating a descriptor corresponding to the replica resource and comparing the formulated descriptor with the cached descriptor; and if the formulated descriptor and the cached descriptor are not equivalent, formulating a second descriptor corresponding to the original resource and comparing the formulated descriptor with the second descriptor.