Naturally, as communications technology rose, so did technology that hampered or blocked communications. Primarily outlawed in Civspace, devices exist which can send out interfering signals that can tamper or entirely block other signals, primarily radio signals. Tachyonic signals are also capable of being blocked, though requires the same large device to do so and only works on a local level, such as a planet or with a much larger station, a solar system. However, the most effective method for disabling all communications in an area is to simple destroy the tachyonic comms system that makes it possible in that area.