Dangerous skills: Understanding and mitigating security risks of voice-controlled third-party functions on virtual personal assistant systems Nan Zhang, Xianghang Mi, Xuan Feng, XiaoFeng Wang, Yuan Tian, Feng Qian May 19, 2019 PDF 引用 演示文稿 视频 1-min Preview Attack Demo Report by Forbes Blog Poster Voice Squatting Attacks IoT Security Machine Learning Security Voice Assistant