Form 8-K

8-K — INTRUSION INC

Accession: 0001683168-26-005684

Filed: 2026-07-22

Period: 2026-07-21

CIK: 0000736012

SIC: 3576 (COMPUTER COMMUNICATIONS EQUIPMENT)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — intrusion_8k.htm (Primary)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM

8-K

CURRENT REPORT

Pursuant to Section 13 or

15(d) of the Securities Exchange Act of 1934

Date of Report (Date of

earliest event reported): July 21,

2026

INTRUSION

INC.

(Exact Name of Registrant

as Specified in Its Charter)

Delaware

001-39608

75-1911917

(State or Other Jurisdiction

of Incorporation)

(Commission File

Number)

(IRS Employer

Identification No.)

101

East Park Blvd, Suite

1200

Plano, Texas

75074

(Address of Principal Executive Offices)

(Zip Code)

(888) 637-7770

(Registrant’s Telephone Number,

Including Area Code)

N/A

(Former Name or Former Address, if Changed Since

Last Report)

Check the appropriate box below if the Form 8-K filing

is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b)

of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common

Stock

INTZ

The NASDAQ Capital Market

Indicate by check mark whether the registrant is an emerging growth

company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if

the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards

provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01 Regulation FD Disclosure.

On July 21, 2026, Intrusion Inc. (the “Company”)

issued a press release providing a business update highlighting the Company's operational execution and strategic momentum following its

combination with VigilAigent, as well as announcing its Investor Technology Day scheduled for July 22, 2026. A copy of the press release

is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information in this Item 7.01 of Form 8-K,

including Exhibit 99.1 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange

Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed

incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth

by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit

No.

Description

99.1

Press Release

issued by Intrusion Inc., dated July 21, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

Pursuant to the requirements

of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto

duly authorized.

Intrusion, Inc.

Dated: July 21, 2026

By:

/s/ Kimberly Pinson

Kimberly Pinson

Chief Financial Officer

EX-99.1 — PRESS RELEASE

EX-99.1

Filename: intrusion_ex9901.htm · Sequence: 2

Exhibit 99.1

Intrusion Inc. Highlights Strong Early Execution

and Strategic Momentum Ahead of Investor Technology Day

Company reports early commercial wins, identifies

more than $3 million in annualized cost synergies and continues to expand multiple revenue growth initiatives

PLANO, Texas, July 21, 2026 (ACCESSWIRE)

-- Intrusion Inc. (NASDAQ: INTZ) (“Intrusion” or the “Company”), a leader in cyberattack prevention solutions,

today provided a business update highlighting the Company's execution and momentum following its combination with VigilAigent.

Since closing the transaction approximately three

weeks ago, the Company believes the combined organization has made significant progress integrating operations, expanding commercial opportunities

and advancing its path toward profitability.

Early Momentum Since Closing

Since completing the VigilAigent acquisition,

the Company has:

· Secured over $350,000 in annualized new business

and customer renewals.

· Onboarded several new strategic Managed Service

Provider (MSP) partners, each of which the Company believes has the potential to generate more than $1 million in annual recurring revenue

as customer deployments are completed and relationships mature.

· Identified more than $3 million in annualized

cost synergies through technology consolidation, operational efficiencies, vendor rationalization and the elimination of redundant infrastructure.

· Expanded cross-selling opportunities by combining

VigilAigent's managed cybersecurity platform, Intrusion's Shield technology and the Company's government cybersecurity expertise into

a broader, integrated cybersecurity offering.

· Continued evaluating strategic acquisition opportunities

designed to expand recurring revenue, strengthen channel relationships and add complementary Ai and cybersecurity capabilities.

Tony Scott, Chief Executive Officer of Intrusion,

commented, “We have already demonstrated the strategic rationale behind this combination, in just a few weeks since the acquisition

announcement. We are seeing encouraging commercial momentum, identifying meaningful cost synergies and creating new opportunities to accelerate

recurring revenue growth while improving operating leverage. Just as importantly, we're building a stronger cybersecurity platform capable

of serving customers across commercial and government markets. Our focus remains on disciplined execution as we continue moving toward

profitability."

Investor Technology Day

The Company will provide investors and analysts

with additional details surrounding its integrated strategy during its Investor Technology Day on July 22, 2026 at 1:00 p.m. ET.

The event will include:

· Live demonstrations of the Company’s technologies.

· Product roadmap and Ai initiatives.

· Integration progress and operational execution.

· Commercial and government growth strategies.

During the Technology Day, investors will receive

the first detailed look at how the Company believes these initiatives collectively create a platform capable of generating sustainable

recurring revenue growth. Webcast registration is now open:

Click Here to Register

About Intrusion Inc.

Intrusion Inc. is a cybersecurity company based

in Plano, Texas, specializing in advanced threat intelligence. At the core of its capabilities is a proprietary database that catalogs

the historical behavior, associations, and reputational risk of IPv4 and IPv6 addresses, domain names, and hostnames. Built on years of

gathering global internet intelligence and supporting government entities, this data forms the backbone of Intrusion's commercial solutions.

About VigilAigent™

VigilAigent™, a subsidiary of Intrusion

Inc. (NASDAQ: INTZ), is redefining managed security with Ai-powered technology, human expertise, and a partner-first delivery model. Built

for MSPs, MSSPs, and enterprise environments to deliver faster threat identification, deeper context, and more effective response. By

unifying security visibility, intelligent automation, and expert human validation, VigilAigent helps partners protect customers, scale

their security practices, and deliver enterprise-grade cyber defense.

For more information, visit www.vigilaigent.com.

Cautionary Statement Regarding Forward-Looking

Information

This press release contains forward-looking statements

within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as

amended, which statements involve substantial risks and uncertainties. All statements other than statements of historical facts contained

herein, including statements regarding our financial position; our ability to continue our business as a going concern; our business,

sales, and marketing strategies and plans; our ability to successfully market, sell, and deliver our Intrusion Shield commercial product

and solutions to an expanding customer base; are forward-looking statements. In some cases, you can identify forward-looking statements

because they contain words such as “anticipate,” “believe,” “contemplate,” “continue,”

“could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,”

“predict,” “project,” “should,” “target,” “will,” or “would” or

the negative of these words or other similar terms or expressions. Forward-looking statements contained in this press release include,

but are not limited to, such statements.

You should not rely on forward-looking statements

as predictions of future events. We have based the forward-looking statements contained in this press release primarily on our current

expectations and projections about future events and trends that we believe may affect our business, financial condition, and operating

results. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties, and other factors

described in our filings with the Securities and Exchange Commission, including but not limited to our most recent annual report on Form

10-K and quarterly reports on Form 10-Q, as the same may be updated from time to time.

The forward-looking statements made herein relate

only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made

in this press release to reflect events or circumstances after the date hereof or to reflect new information or the occurrence of unanticipated

events, except as required by law.

IR Contact:

Alpha IR Group

Mike Cummings or Josh Carroll

INTZ@alpha-ir.com

Source: Intrusion Inc.

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