An originator of an appliance can independently secure the appliance for instantiation in the cloud, separate from the security level of the cloud. The invention relates to a layered composite material comprising a support layer, a metal bearing layer consisting of a copper alloy or an aluminium alloy, a nickel intermediate layer with a thickness >4 \u03bcm and an anti-friction layer consisting of approx. The approximation of a fractional Fourier transform operation may comprise a portion of a Taylor series expansion, a Hermite function expansion, a perturbation approximation, a singular integral approximation, or an infinitesimal generator. The gain may generally be increased as high as feasible in view of the microphone baseline noise, which should preferably be kept below the hearing threshold. In one embodiment, the combination with the back-end SSL with an intrusion detection system improves security by performing intrusion detection on the decrypted HTTPS traffic. Screws can be hydraulically, pneumatically, mechanically, electrically or manually driven.