Various systems and methods for implementing EMG-based liveness detection are described herein. An EMG-based liveness detection system incorporated into a wearable device includes a plurality of electrodes to sense EMG signal data of a user an amplifier to amplify the EMG signal data a filter to remove signal noise from the EMG signal data an analog-to-digital converter to analyze the EMG signal data and convert it to digital data and a controller to: authenticate the user perform an EMG-based liveness test of the user based on the digital data and disable the wearable device when the EMG-based liveness test fails.
