Rebekah Brooks reportedly claimed that she was unaware that the practice of hacking was illegal when she was working as the editor in the News of the World.
Brooks told the phone-hacking trial that she didn't think anybody, including her, knew it was illegal.
According to the BBC, she told the Old Bailey that she felt shock and horror after she discovered murdered schoolgirl Milly Dowler's phone had been hacked.
Brooks further said that she became aware Milly's phone had been hacked on 4 July 2011.
