I learned this the hard way when I received a counterfeit playstation controller, straight from the "Sony" store. For some reason, none of my reviews, even the positive ones, have posted since that one, which included pictures of a teardown.
It was wireless and never connected to the machine, so I'm not sure it was capable of damage. But it also didn't have much of a chance since it would only stay connected for about 30 seconds, after pairing.
I learned this the hard way when I received a counterfeit playstation controller, straight from the "Sony" store. For some reason, none of my reviews, even the positive ones, have posted since that one, which included pictures of a teardown.