FORM 10-Q ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF1934 For the quarterly period ended March 31, 2026 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF1934 Commission File Number 001-39608 INTRUSION INC.(Exact name of registrant as specified in its charter) * * * * * * * * * * Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),and (2) has been subject to such filing requirements for the past 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that theregistrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smallerreporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large, accelerated filer☐Non-accelerated filer☒ Accelerated filer☐Smaller reporting company☒Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act): Yes☐No☒ The number of shares outstanding of the Registrant’s Common Stock, $0.01 par value, on May 14, 2026, was 20,369,066. INTRUSION INC. INDEX PART I – FINANCIAL INFORMATION3Item 1. Financial Statements3Condensed Consolidated Balance Sheets as of March 31, 2026 (unaudited), and December 31, 20253Unaudited Condensed Consolidated Statements of Operations for the three months ended March 31, 2026, and 20254Unaudited Condensed Consolidated Statements of Changes in Stockholders’ Equity for the three months ended March 31, 2026,and 20255Unaudited Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2026, and 20256Notes to Unaudited Condensed Consolidated Financial Statements7Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations15Item 3. Quantitative and Qualitative Disclosures About Market Risk19Item 4. Controls and Procedures19PART II – OTHER INFORMATION20Item 1. Legal Proceedings20Item 1A. Risk Factors20Item 2. Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Purchases of Equity Securities20Item 3. Defaults Upon Senior Securities20Item 4. Mine Safety Disclosures20Item 5. Other Information20Item 6. Exhibits21Signature Page22 PART I – FINANCIAL INFORMATION INTRUSION INC. AND SUBSIDIARIESCONDENSED CONSOLIDATED BALANCE SHEETS(In thousands, except par value amounts) INTRUSION INC. AND SUBSIDIARIESUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS(In thousands, except per share amounts) INTRUSIONINC. AND SUBSIDIARIESUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY(In thousands) INTRUSION INC. AND SUBSIDIARIESUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(In thousands) INTRUSION INC. AND SUBSIDIARIESNOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS 1.Description of Business Intrusion Inc. (together with its consolidated subsidiaries, the “Company,” “Intrusion,” “Intrusion Inc.,” “we,” “us,” “our,” orsimilar terms) was organized in Texas in September 1983 and reincorporated in Delaware in October 1995. Our principal executiveoffices are located at 101 East Park Boulevard, Suite 1200, Plano, Texas 75074, and our telephone number is (888) 637-7770. Ourwebsite URL is www.intrusion.com. The Company develops, sells, and supports products that protect any-sized company or government organization by fusingadvanced threat intelligence with real-time mitigation to kill cyberattacks as they occur – including Zero-Days. The Company marketsand distributes the Company’s solutions through value-added resellers, managed service providers and a direct sales force. TheCompany’s end-user customers include United States (“U.S.”) federal government entities, state and local government entities, andcompanies ranging in size from mid-market to large enterprises. TraceCop (“TraceCop™”)andSavant(“Savant™”) are registered trademarks of Intrusion Inc. The Company has applied fortrademark protection for the Company’s newINTRUSIONShieldcybersecurity solution. 2.Basis of Presentation The acco