5G networks are the talk of the mobile world, with a few test markets already available in the US and the UK. The launch of 5G networks marks a sea change in greater global connectivity and a radical departure from the traditional network connectivity of the past. It also opens up a range of urgent cybersecurity issues that will require a new approach by mobile network operators (MNOs). The central challenge is the exponential growth of the attack surface as IoT devices and mobile edge-based computing expand on a scale never previously seen.
