Abstract: Some implementations provide input-triggered user verification. This may involve trigging a user verification (e.g., capture of an image, sound, fingerprint, etc.) to verify a user's identity based on input (e.g., typing) received ad the device. Triggering the user-verification based on receiving input may help ensure that the image, sound, fingerprint, etc. is captured at a time when the user is close to the device, touching the finger-print sensor, and/or in view of the camera during the capturing. Some implementations provide user verification based on a user-identification of a previously selected image. This may involve using an inmate-selected picture or other image to recover a forgotten alphanumeric reference. Some implementations of the invention disclosed herein provide user verification based on a computer-vision identification of a wearable identification tag. This may involve using an image of the user's identification tag worn on the user's wrist to verify the user's identity.

Abstract: Some implementations provide input-triggered user verification. This may involve trigging a user verification (e.g., capture of an image, sound, fingerprint, etc.) to verify a user's identity based on input (e.g., typing) received ad the device. Triggering the user-verification based on receiving input may help ensure that the image, sound, fingerprint, etc. is captured at a time when the user is close to the device, touching the finger-print sensor, and/or in view of the camera during the capturing. Some implementations provide user verification based on a user-identification of a previously selected image. This may involve using an inmate-selected picture or other image to recover a forgotten alphanumeric reference. Some implementations of the invention disclosed herein provide user verification based on a computer-vision identification of a wearable identification tag. This may involve using an image of the user's identification tag worn on the user's wrist to verify the user's identity.