This isn't true. Your electronics might be fried by a flare if they were in space, but the geomagnetic field changes due to a flare will not induce currents in

This isn't true. Your electronics might be fried by a flare if they were in space, but the geomagnetic field changes due to a flare will not induce currents in any conductor shorter than several tens of kilometers. I think you are thinking of nuclear EMPs which could affect electronics?