A method is provided in one example embodiment that includes detecting repetitive connections from a source node to a destination node, calculating a score for the source node based on the connections, and taking a policy action if the score exceeds a threshold score. The techniques do not assume tamper resistance of the device, but rather exploit the networked nature of the device, in that the device’s private key operations are performed using a simple interaction with a remote server. The first gear is fixed on the hollow shaft. A terminal portion of one of the conductive traces terminates at an edge of the first sensor electrode and has an attached light occluding element. The assembly can be detached by inserting a pointed object into a through hole on the well to disengage the magnet from the well. In an example, a method includes forming a resist layer over a substrate; developing the resist layer; washing the developed resist layer with a thinner wash solution, wherein the washing reveals any negatively charged defects in the developed resist layer; and after the washing, inspecting for the negatively charged defects.