Cyber security experts say the federal government should consider banning a controversial AI chatbot with Chinese origins on all Australian devices, warning it poses a "unique risk" to national security. DeepSeek AI was banned from all government devices last month, after a directive from Australian National Security and intelligence agencies found the chatbot put the federal "technology estate" at risk. The tech was produced in Hangzhou city in China and runs at a fraction of the price of other AI products. DeepSeek AI's connection to China has raised security questions in Australian intelligence circles. (Reuters: Dado Ruvic) Australia's national security…