"Revelations of the US government's mass surveillance program, PRISM, have alarmed many and led to calls for greater transparency from government intelligence agencies.
Although the Australian Government will not confirm it "for reasons of national security", it is widely believed that Australia's long-standing intelligence relationship with the US means electronic surveillance collected here is shared with the US National Security Agency and the PRISM network.
Documents obtained by the ABC under Freedom of Information laws .
Andy Start, the president of global government business for Inmarsat - the largest mobile satellite service in the world - says the only way to ensure a conversation remains private is to have it face to face.
Mr Start says rapid developments in technology mean any thought of internet privacy is irrelevant.
Already any government agency that wants to know what an individual is doing has the ability to track them."