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): August 2, 2026

SideChannel, Inc.

(Exact name of registrant as specified in its charter)

Delaware 000-28745 86-0837077

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

146 Main Street, Suite 405, Worcester, MA 01608

(Address of principal executive offices) (Zip Code)

(508) 925-0114

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

☐ 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
N/A N/A N/A

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1934 (§240.12b-2 of this chapter).

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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 2, 2026, Robert Brown resigned as a member of the Board of Directors (the “Board”) of SideChannel, Inc. (the “Company”). His resignation was not the result of any disagreement with the Company, known to an executive officer of the Company, on any matter relating to the Company’s operations, policies or practices. Immediately following General (Retired) Brown’s resignation, there were four directors. The size of the Board has been set at seven members; accordingly, there are currently three vacancies.

SIGNATURES

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.

SideChannel, Inc.
Date: August 7, 2026 By: /s/ Brian Haugli
Name: Brian Haugli
Title: Chief Executive Officer