Table of Contents As filed with the U.S. Securities and Exchange Commission on July 19, 2024 Registration No. 333-______ Form S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 INTRUSION INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 3576 75-1911917 (I.R.S. Employer Identification Number) 101 East Park Blvd, Suite 1200 Plano, Texas 75074 Telephone: (972) 234- ...