Authorities can't force people to unlock their biometrically secured phones or other devices, according to a federal judge. "The Government may not compel or otherwise utilize fingers, thumbs, facial recognition, optical/iris, or any other biometric feature to unlock electronic devices," Magistrate Judge Kandis A. Westmore wrote. An attempt by law enforcement authorities in Oakland, California, to force two suspected extortionists to unlock their mobile phones with biometrics violated Fifth Amendment protections against self-incrimination.