{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9639825","patent":{"patent_number":"US-9639825","title":"Securing multifactor authentication","assignee":null,"inventors":[],"filing_date":"2011-06-14T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["G06Q","G06F","H04L","H04L","H04L","H04L","H04L","G06F","G06Q","H04L","H04L","H04W"],"num_claims":31,"abstract":"In certain embodiments, a system receives a request sent by a device to authorize an operation. The system initiates display of an image encoding a challenge code to allow the device to capture the image and extract the challenge code. The device calculates a response using the challenge code and a seed, and sends the response to the system. In certain examples, the device may send the request over a first channel and the response over a second channel distinct from the first channel. In other examples, the device displays the response and a user inputs the response into a computing system to send to the system."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Securing multifactor authentication","description":"In certain embodiments, a system receives a request sent by a device to authorize an operation. The system initiates display of an image encoding a challenge code to allow the device to capture the im","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9639825","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-9639825","citation_suggestion":"Patentable. \"Securing multifactor authentication\" (US-9639825). https://patentable.app/patents/US-9639825","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9639825","json":"https://patentable.app/api/llm-context/US-9639825","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:23:01.531Z"}