Security Threats Seen Looming as 5G Starts to Launch

The threat to networks is real, Clete Johnson, of Wilkinson Barker, said at a Silicon Flatirons spectrum conference Thursday. The threat comes from intelligence services and their agents in countries including North Korea, China, Iran and Russia, he said. There are “tens of thousands of people” who “go to school, go to work, they provide for their families, they find fulfillment in their daily life by trying to figure out how to get into our networks and devices,” Johnson said. “It’s their job. So it’s not some abstraction. It’s a concrete set of forces who are out there working on this every day.” The more everything is connected “everything is vulnerable” and 5G will pose new threats, he said. The government and industry need to work together, Johnson said: “If everything is connected, then all of the solutions need to be connected.” Monisha Ghosh, engineering professor at the University of Chicago and program director at the National Science Foundation, said the U.S. is researching the security threat. “A lot of the news items that you see of threats being discovered or solutions being proposed are coming from the academic community,” she said: “We need to get that community much better connected to industry as well as federal agencies.” Ghosh said “funding is never adequate” and the joke is “NSF stands for not sufficient funds.” Some of the threats will be revealed only as networks launch, she said. “5G is going to roll out as a production system,” she said: “It’s not being experimented with at the scale at which it’s going to roll out. When it rolls out is when you’re going to find the holes.” Rebecca Dorch, senior spectrum policy analyst at the NTIA Institute for Telecommunication Sciences, oversaw testing of systems in the new 3.5 GHz citizens broadband radio service band. Researchers did their best to identify the unknowns, she said. “My nightmare scenario is, notwithstanding all of the careful analysis, … something unexpected or unanticipated could occur within that entire ecosystem that could actually cause harmful interference,” she said. Dynamic spectrum sharing in general poses risks, Dorch said. “Sharing between very, very different types of communications systems, as that increases, and the density of those devices and systems … that’s where I think that we really haven’t fully tacked for potential for interference at the RF level,” she said: “We’ve got some real vulnerabilities potentially there.” Johnson recalled the financial crisis of 2008, where problems in the subprime mortgage market in the United States developed into a full-blown international banking crisis. “You had a problem in one place that cascaded and took over the entire economy,” Johnson said: “My nightmare is as the speed of innovation increases, or the rate of innovation increases, and we deploy billions and billions of devices” it connects people and companies “that may not be aware or where their data sits or how it can be corrupted or manipulated.” We need to test networks, but we don’t know what the “bugs are” until 5G rolls out on a mass scale, he said. Cooperation is crucial, Johnson said: “We’re all part of this increasingly symbiotic relationship and we don’t know exactly what the effects of that are going to be when something goes wrong.”