Secure phone uses sonar to watch your mouth saying a passphrase

 作者:蹇螟     |      日期:2019-03-06 01:20:03
imagesource/getty By Paul Marks “My voice is my password.” Passphrases that use biometric voice recognition to verify it’s really you are becoming increasingly popular. But their increasing use carries a risk: someone with a recording of your voice could easily splice the right spoken words together and spoof their way into your digital life. Now a new technology detects such shenanigans – using sonar. Even as biometrics are replacing passwords, voice recognition is becoming more vulnerable to spoofing. Fuelling this risk, says security engineer Jie Yang at the Florida State University in Tallahassee,