US Patent Issued to Microsoft Technology Licensing on Aug. 26 for "Signing large language model prompts to prevent unintended response" (Washington Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,991, issued on Aug. 26, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Signing large language model prompts to prevent unintended response" was invented by Colin Bruce Clement (Seattle), Shengyu Fu (Redmond, Wash.), Neelakantan Sundaresan (Bellevue, Wash.) and Dongjiang You (Kirkland, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A technique to prevent a prompt injection attack utilizes a security agent to sign a large language model prompt with a secret that is isolated from the user application or device that generates a user prompt. The secret is tailored for a specific user identifier and session identifier. The lar...