Researchers from the i2CAT Foundation, the University of Murcia, and NEC Laboratories Europe built a low-cost tool called 5G-Shark that lures a target phone onto a fake base station and questions it, then used it to audit commercial 5G networks. On the standalone-5G networks they tested, operators concealed the phone’s permanent identity correctly in every case but one. The same networks still handed out temporary IDs in a pattern predictable enough that an observer can … More → The post A cheap fake base station can still track 5G subscribers appeared first on Help Net Security .