As with the flaw-ridden protocol underlying 3G, the 4G protocol is susceptible to attacks that disclose mobile users’ information or impose a denial or service, according to new research.

Exploits include the ability to spoof or track a victim device’s location, intercept phone calls and messages and even inject fake emergency alerts.

The Diameter protocol, which replaces the older SS7, can disrupt services to both specific users and nodes that provide access for entire regions.