Is China spying on the Americans?

A Washington-based former mobile network security executive is claiming that China may have been using Caribbean mobile phone networks as part of an espionage campaign against Americans. The state is allegedly exploiting decades-old vulnerabilities in Caribbean telecoms networks to target Americans while they are travelling abroad. Security expert Gary Miller says that the US has “not gone far enough” to block hacking attempts, and advises that they may not be aware of how insecure their communications are.