Simple tech trick can disable 4G networks: research

A city’s 4G network could be easily taken out of commission with a cheap, battery operated piece jamming equipment, says the wireless research group at Virginia Tech.

According to MIT Technology Review, the discovery means that 4G networks using Long Term Evolution (LTE) mobile broadband technology are more vulnerable to intentional disruption than their 2G and 3G predecessors.

LTE networks are currently being rolled out across the world as the next standard of mobile broadband technology.

The research found that it only takes a battery, a laptop and a software-defined radio unit to jam the signal. The trick also requires some knowledge of LTE standards; however such information is openly published online.

Director of the wireless research group at Virginia Tech, Jeff Reed said the manoeuvre is “relatively easy to do” and hard to defend against.