{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9768959","patent":{"patent_number":"US-9768959","title":"Computer security system and method to protect against keystroke logging","assignee":null,"inventors":[],"filing_date":"2015-03-10T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","G06F","H04L","H04L","G06F","G06F","H04L"],"num_claims":18,"abstract":"Static security credentials are replaced by pseudonyms and session-specific passwords to increase security associated with user login attempts, and specifically to defeat keylogging attacks. For each login event, the system generates unique, session-specific credentials by randomly replacing characters within a given username and password. The random character generation ensures that system login attempts use different combinations of characters, thereby producing a new username and password for every user session. The client side of the system requires only the capability to display an image file, with specialized software/hardware limited to the server side, thereby facilitating the use of the system by a wide range of client devices."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Computer security system and method to protect against keystroke logging","description":"Static security credentials are replaced by pseudonyms and session-specific passwords to increase security associated with user login attempts, and specifically to defeat keylogging attacks. For each ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9768959","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-9768959","citation_suggestion":"Patentable. \"Computer security system and method to protect against keystroke logging\" (US-9768959). https://patentable.app/patents/US-9768959","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9768959","json":"https://patentable.app/api/llm-context/US-9768959","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:17:19.300Z"}