Security flaw in handsets could let hackers LISTEN to you typing to steal your passwords

Daily Mail - Science & tech 

You shouldn't let anyone see you enter your phone's login password -- but there could also be a danger from hackers hearing it over your smartphone's microphone. Experts from England and Sweden have shown how hacked microphones can be used to decode the sound of typing on a smartphone screen into the keys pressed. In a test, their algorithm could correctly guess 31 out of 50 four-digit login pins in just 10 attempts based on recordings made of the participants as they typed. These potential attacks would likely begin with the accidental download of malicious software -- so users should keep themselves safe by only using trusted apps. Limiting microphone access to only those apps that need it will also help to make your smartphone more secure.