An information leakage prevention shield device includes a control unit to output a frequency setting signal for setting a filter frequency for an electromagnetic wave emitted from a device, and a modulation signal based on a time variation pattern for sequentially instructing a plurality of different transmission characteristics over time, and a dynamic electromagnetic-wave filter having a filter frequency set by a frequency setting signal from the control unit, having the plurality of different transmission characteristics over time set by the modulation signal from the control unit, to transmit an electromagnetic wave other than the filter frequency set by the frequency setting signal, and to have the plurality of different transmission characteristics over time set by the modulation signal with respect to the filter frequency set by the frequency setting signal.

There may be provided a method for inducing a disruption to an operation of an unmanned aerial vehicle (UAV) that communicates with a remote controller, said method may include determining to induce the disruption to the operation of the UAV; and transmitting, to the UAV, one or more disrupting commands that once executed by the at UAV causes a unit of the UAV to malfunction, the malfunction induces the disruption to the operation of the UAV.