While most of the world is looking towards 5G as a huge improvement over previous generations in every way, the European Union Agency for Network and Information Security (ENISA) is concerned about security flaws. In their report, ENISA noted that “there is a certain risk of repeating history” if 5G networks uses the same signaling protocols used in 2G, 3G and 4G mobile. Known flaws in the SS7 and Diameter signalling protocols have allowed traffic to be eavesdropped, spoofed, or intercepted by attackers, and there are concerns that 5G networks may use the same or similar protocols – although that remains to be seen at this stage.