# User Authentication and Security Systems { "id": "T11800", "title": "User Authentication and Security Systems", "url": "/topics/T11800", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "openalex", "revision": "10a66442b0c54b17", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "36183554359215187", "address_version": "morton4x16-v1", "coordinates": [ 3, 17, 1710, 11800 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } This cluster of papers explores various user authentication methods and security measures, including biometrics, passwords, graphical passwords, continuous authentication, CAPTCHA, and their usability and effectiveness in securing mobile devices and online accounts. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://openalex.org/T11800 No owner-reviewed local answer yet.