Australian Signals Directorate sounds alarm on ‘shifting tactics’ by state-sponsored hackers and cybercriminals, and targeting of critical infrastructureGet our breaking news email, free app or daily news podcastCybercriminals are using fake QR codes or sophisticated artificial intelligence scams to trick Australians into giving up their private details or downloading dangerous files, the nation’s signals intelligence agency has warned, as fraudsters take advantage of the technology’s popularity.The Australian Signals Directorate also sounded the alarm on the “shifting tactics” of state-sponsored hackers and cybercriminals, who they said are burrowing into computer systems of businesses and other organisations and then sitting quietly to avoid detection until they choose to strike.Sign up for Guardian Australia’s breaking news email Continue reading...