# US 10,120,991 B1 · Systems and methods for initiating immediate data erasure on a device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,120,991 B1 - Document ID: US10120991B1 - Status: Granted - Kind: B1 - Application number: 15/671,631 - Filed: 2017-08-08 - Granted: 2018-11-06 - Earliest claimed: 2013-10-29 - Applicants: Marc W. Tobias - Inventors: Marc W. Tobias - Web page: https://patentgrep.com/patent/US10120991B1 ## CPC - G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints - G06F 3/0637: {Permissions} - G06F 3/0652: {Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket} - G06F 3/0673: {Single storage device} - G06F 2221/2143: Clearing memory, e.g. to prevent the data from being stolen - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A system and method of erasing data on a data handling device may include providing a device with a data storage element and a biometric characteristic scanning element, scanning a triggering biometric characteristic of a secured user by the scanning element, and storing protected data in a protected storage location on the data handling device. System and method may also include monitoring the scanning element for detection of a biometric characteristic, detecting a biometric characteristic by the scanning element, and determining if the detected biometric characteristic corresponds to the triggering biometric characteristic. If the detected biometric characteristic corresponds to the triggering biometric characteristic, then erasing data in the protected storage location. ## Claims ### Claim 1 A method of erasing data on an access control device comprising: providing an access control device including a physically actuatable switch, a data storage element configured to store data, and a biometric characteristic scanning element configured to scan a biometric characteristic of a user; scanning a triggering biometric characteristic of a secured user by the biometric characteristic scanning element and storing, on the access control device, data characterizing the triggering biometric characteristic of the secured user; storing protected data in a protected storage location on the access control device; monitoring the biometric characteristic scanning device for detection by the scanning device of a biometric characteristic; detecting a biometric characteristic by the biometric characteristic scanning element; determining if the detected biometric characteristic corresponds to the triggering biometric characteristic; if the detected biometric characteristic corresponds to the triggering biometric characteristic, then erasing data in the protected storage location in response to a determination that the detected biometric characteristic corresponds to the triggering biometric characteristic; wherein the erasure of the data in the protected storage location includes overwriting of locations in the protected storage location; and wherein erasure of data in the protected storage location requires a combination of determining that the detected biometric characteristic corresponds to the triggering biometric characteristic and actuation of the physical switch in temporal proximity to the detecting the biometric characteristic by the biometric characteristic scanning element of the device. ### Claim 2 (depends on 1) The method of claim 1 wherein the temporal proximity is a few seconds. ### Claim 3 (depends on 1) The method of claim 1 wherein any erasure of stored data characterizing the triggering biometric characteristic occurs upon detection of the triggering biometric characteristic. ### Claim 4 (depends on 1) The method of claim 1 additionally comprising storing the data characterizing the triggering biometric characteristic in a location different from the protected storage location. ### Claim 5 (depends on 1) The method of claim 1 wherein the biometric characteristic scanning element comprises a fingerprint scanner and the triggering biometric characteristic comprises a fingerprint. ### Claim 6 (depends on 1) The method of claim 1 additionally comprising scanning an authorizing biometric characteristic of an authorized user by the biometric characteristic scanning device, and storing, on the data handling device, data characterizing the authorizing biometric characteristic of the authorized user. ### Claim 7 (depends on 6) The method of claim 6 wherein the authorizing biometric characteristic comprising a first fingerprint. ### Claim 8 (depends on 7) The method of claim 7 wherein the triggering biometric characteristic comprises a second fingerprint different from the first fingerprint. ### Claim 9 (depends on 5) The method of claim 5 wherein detecting a biometric characteristic comprises detecting the presence of a finger on the fingerprint scanner. ### Claim 10 (depends on 1) The method of claim 1 wherein determining if the detected biometric characteristic corresponds to the triggering biometric characteristic comprises comparing data characterizing the detected biometric characteristic to stored data characterizing the triggering biometric characteristic. ### Claim 11 (depends on 6) The method of claim 6 additionally comprising determining if the detected biometric characteristic corresponds to the authorizing biometric characteristic. ### Claim 12 (depends on 11) The method of claim 11 wherein, if the detected biometric characteristic corresponds to the authorizing biometric characteristic, providing access to functions of the data handling device. ### Claim 13 (depends on 1) The method of claim 1 wherein the erasure of the data in the protected storage location occurs substantially immediately. ### Claim 14 (depends on 1) The method of claim 1 wherein the erasure of the data in the protected storage location occurs without any further action by the user. ### Claim 15 (depends on 1) The method of claim 1 wherein the erasure of the data in the protected storage location includes overwriting of locations in the protected storage location. ### Claim 16 (depends on 1) The method of claim 1 wherein the data handling device comprises a smartphone.