A shield for a toroidal transformer that includes a toroidal assembly that comprises a toroidal magnetic core and a first winding includes a sheet of flexible non-magnetic conductive material. The sheet of flexible non-magnetic conductive material comprises a trunk portion extending along a longest dimension of the sheet of flexible non-magnetic conductive material and configured to wrap along an outer dimension of the toroidal assembly, and a plurality of fingers extending outwardly from the trunk portion and configured to wrap around portions of the first winding along portions of sides of the toroidal assembly in a direction towards the center of the toroidal magnetic core and folding into an inner dimension of the toroidal assembly.