Researchers at the University of Surrey have built an AI system that they say can stop 5G cyber-attacks in less than a tenth of a second.

The system, called TwinGuard, watches a live virtual copy of the network and spots suspicious activity before it causes problems.

In tests, it successfully blocked attacks that try to overwhelm mobile masts or flood network controllers with fake requests.

Experts say this fast, smart defence will be key to keeping future 6G networks safe from hackers.