5G that uses “non-standalone architecture” is rife with security issues and doesn’t protect people from Stingray police surveillance.
Borgaonkar and fellow researcher Altaf Shaik, a senior research scientist at TU Berlin, found that major carriers in Norway and Germany are still putting out 5G in non-standalone mode, which means that those connections are still susceptible to stingrays. The two presented at the Black Hat security conference in Las Vegas last week.