Despite keeping the world constantly connected, 4G networks are still plagued with weaknesses that leave entire mobile networks and future "Smart Cities" open to fraud and other attacks.
As a growing number of cities provide free WiFi networks become, a security researcher demonstrated his successful hack of his city's WiFi network.
The security industry is watching the growth of smart cities with increasing suspicion. Their gripe? How to defend them.
In cities around the US, campaigns are being mobilised to allow greater accountability when it comes to surveillance policy.
The root of the problem with malicious smart city hacking lies in the fact that sensors typically collect 'raw' data and then merely pass it on.