{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9742751","patent":{"patent_number":"US-9742751","title":"Systems and methods for automatically identifying and removing weak stimuli used in stimulus-based authentication","assignee":null,"inventors":[],"filing_date":"2013-09-24T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","G06F","H04L"],"num_claims":17,"abstract":"Systems and methods for identifying a weak stimulus in a stimulus-based authentication system is provided. Counters are associated with each stimulus used in the authentication and a first counter is incremented when the stimulus is used in an authentication session and a second counter is incremented when a successful event occurs with respect to the stimulus during the authentication session, but the authentication session ultimately fails. A ratio of the second counter and the first counter is compared to a threshold and the stimulus is identified as weak when the ratio exceeds the threshold. The stimulus may then be removed and no longer be used in the stimulus-based authentication system."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Systems and methods for automatically identifying and removing weak stimuli used in stimulus-based authentication","description":"Systems and methods for identifying a weak stimulus in a stimulus-based authentication system is provided. Counters are associated with each stimulus used in the authentication and a first counter is ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9742751","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9742751","citation_suggestion":"Patentable. \"Systems and methods for automatically identifying and removing weak stimuli used in stimulus-based authentication\" (US-9742751). https://patentable.app/patents/US-9742751","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9742751","json":"https://patentable.app/api/llm-context/US-9742751","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:41:21.389Z"}