ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,231,463, issued on Feb. 18, was assigned to PROOFPOINT INC. (Sunnyvale, Calif.).
"Content-based socially-engineered threat classifier" was invented by Cameron Michael Schmauch (Los Gatos, Calif.) and Chaitanya Puchakayala (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Threat detection systems and methods in which feature syntax language (FSL) statements are used to define functions that generate features corresponding to detected text within textual non-attachment, non-URL input data. Generated features are aggregated in a core object, and classification rules are applied to the core object to determine a threat classification and them...