VirnetX Facilities Receive Critical Department of Defense Security Certification

DD Form 2345 Certification Reinforces Strategic Shift Toward Department of Defense and Intelligence Community Focus

VirnetX Holding Corporation (NYSE:VHC), a global leader in secure communications and zero-trust cybersecurity solutions, today announced that it has received DD Form 2345 certifications for its two facilities in Zephyr Cove, Nevada, and Farmington, Utah. This achievement represents a significant milestone in the company's evolution from a primarily commercial provider toward its goal of becoming a dedicated partner for the U.S. Department of Defense (DoD) and Intelligence Community (IC).

The DD Form 2345, formally known as the Militarily Critical Technical Data Agreement, is a certification administered by the DoD's Joint Certification Program. It enables certified organizations to access unclassified technical data with military or space applications that are subject to export controls under the Export Administration Regulations or International Traffic in Arms Regulations. This certification is essential for contractors, including technology companies like VirnetX, to handle and share sensitive technical information without compromising national security.

Acquiring the DD Form 2345 is critically important for companies seeking to engage with the DoD and IC, as it unlocks opportunities to participate in classified projects, collaborate on defense initiatives, and bid on government contracts that require access to controlled data. For VirnetX, this certification corroborates the company's robust security protocols and positions it to deliver its patented zero-trust platforms, designed for resilient, secure communications across on-premises, cloud, and hybrid environments, to mission-critical applications in land, sea, air, space, and cyber domains. It underscores VirnetX's strategic pivot, allowing the company to expand in the defense sector with its Digital Engineering services that advance Model-Based Systems Engineering and align with the DoD's Digital Engineering strategy. VirnetX embeds secure communications along with its Dynamic Trust Evaluation for the purpose of ensuring resilient networks. The Company's product portfolio is designed to secure command and control, battle management, and multi-domain sensor orchestration, while its Cyber Threat Intelligence services deliver insights, empowering defense leaders to anticipate and counter emerging threats.

"We are excited to announce this certification which reinforces our commitment to national security and innovation," said Kendall Larsen, VirnetX CEO and President. "As we transition our focus toward serving the DoD and IC, the DD Form 2345 empowers us to provide cutting-edge, zero-trust solutions that protect sensitive communications and data in an increasingly complex threat landscape. This is a game-changer for VirnetX and our partners as it strengthens our shift to broader industry trends toward enhanced government collaboration, enabling the company to contribute to vital programs that safeguard U.S. interests."

About VirnetX

VirnetX Holding Corporation is an Internet security software and technology company specializing in patented Zero Trust Network Access ("ZTNA") for secure network communications. The Company's solutions, including its Secure Domain Name Registry and its flagship platform, VirnetX One™, and products like War Room™ and VirnetX Matrix™, are designed to be device and location independent and enable secure real-time communication environments for U.S. defense, intelligence, and government agencies, as well as enterprise applications and critical infrastructure. The Company also offers Digital Engineering services that align with defense strategies, including its comprehensive Cyber Threat Assessment services and Model-Based System Engineering processes. For more information, please visit www.virnetx.com.

Special Note Regarding Forward-Looking Statements

This press release should be read in conjunction with our filings with the Securities and Exchange Commission. Statements herein may constitute "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

These forward-looking statements are based upon our current expectations, estimates, assumptions, and beliefs concerning future events and conditions and may discuss, among other things, expectations regarding our expansion in the defense sector and becoming a dedicated partner of the U.S. Department of Defense and Intelligence Communities, the impact of receiving government certifications, as well as our opportunities to participate in classified projects, collaborate on defense initiatives and bid on governments contracts. Any statement that is not historical in nature is a forward- looking statement and may be identified by the use of words and phrases such as "anticipates," "believes," "estimates," "expects," "intends," "plans," "predicts," "projects," "will be," "will continue," "will likely result in," and similar expressions. Readers are cautioned not to place undue reliance on forward-looking statements. Forward-looking statements are necessarily subject to risks, uncertainties, and other factors, many of which are outside our control, and could cause actual results to differ materially from such statements and from our historical results and experience. These risks, uncertainties and other factors include, but are not limited to risks detailed in our filings with the Securities and Exchange Commission (the "SEC"), including our Annual Report on Form 10-K, filed on March 17, 2025. Readers are cautioned that it is not possible to predict or identify all the risks, uncertainties and other factors that may affect future results and that the risks described herein should not be considered a complete list. Any forward-looking statement speaks only as of the date on which such statement is made.

EXCEPT AS REQUIRED BY LAW, WE UNDERTAKE NO OBLIGATION TO UPDATE OR REVISE ANY FORWARD-LOOKING STATEMENT AS A RESULT OF NEW INFORMATION, FUTURE EVENTS OR OTHERWISE.

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