James Sullivan, the head of cyber research at RUSI, the Royal United Services Institute in London, says that risks to 5G networks can be protected through new and inventive ways. “People talk about 5G being revolutionary, but I don't think that’s true at this moment. It’s more evolutionary. 5G builds on top of 4G,” he says. Sullivan believes that the measures used to secure 4G networks can still apply, in many instances, to 5G networks.“It’s just about doing them well, and in a different way,” he added “I just don’t think it really stands up when suddenly we draw a line in the sand and say, everything you've been doing before no longer applies.And it’s now suddenly the Wild West and you’re in the 5G network and you do what you want. I just don't think that stands up."