Arqit and RAD announce Quantum-Safe collaboration Against Evolving Cyberthreats

LONDON, March 02, 2026 (GLOBE NEWSWIRE) -- Arqit (NASDAQ:ARQQ, ARQQW)), a global leader in PQC migration tooling and quantum-safe encryption, and RAD, a global leader in networking edge solutions, today announced a collaboration to deliver a joint quantum-safe encryption solution for telcos, enabling them to offer quantum-safe business services such as site-to-site and site-to-cloud VPNs, as well as Data Center Interconnect (DCI). This announcement follows the successful integration of Arqit's NetworkSecure™ quantum-safe encryption key generation technology with RAD's high-performance ETX Carrier Edge platform.

This joint solution addresses enterprises' need for security that is robust enough to thwart the risk presented by quantum computing becoming widely available, which will render most public-key infrastructure obsolete. While this reality is fast approaching, there's a current threat in the form of "Harvest Now, Decrypt Later" (HNDL) attacks, prompting enterprises to look at their communications service providers for an immediate solution.

Andy Leaver, CEO at Arqit said:

"The urgent need for institutions globally to fortify their encryption against public key infrastructure weaknesses, HNDL and the fast-approaching quantum threat to long-term data security is beyond dispute. We believe that by collaborating with RAD, telcos will benefit from a crypto-agile and hybrid, post quantum solution."

Eli Angel, VP Product & Marketing at RAD, said:

"By leveraging Arqit's key generation technology, hybridized with Post Quantum algorithms, and together with RAD's unique high speed wireline encryption, we strengthen our quantum security ecosystem, adding another layer of defense to navigate the rapidly evolving landscape of threats and technologies."

About RAD

RAD is a global leader in networking edge solutions. As an industry pioneer for over 40 years, RAD reliably supplies communications service providers and critical infrastructure operators in over 150 countries with best-of-breed Carrier Edge, IoT, 5G, and critical operational network solutions. RAD co-innovates solutions with customers, offering always-on connectivity from anywhere, in addition to data-driven, AI-powered, actionable insights at a glance. Founded in 1981, RAD serves as the anchor of the RAD Group, an umbrella of independent companies that develop diverse networking and telecom solutions.

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Kevin Tanzillo

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About Arqit

Arqit Quantum Inc. (NASDAQ:ARQQ, ARQQW)) secures the world's most critical data with quantum-safe encryption software. Simple, scalable, and compliant, its products integrate with existing infrastructure, and requires no rip and replace of hardware.

Arqit provides a complete "Detect, Protect, Comply" solution for governments and enterprises that detects and inventories cryptographic assets, protects data, ensures compliance, and safeguards transition to the post-quantum era.

Arqit's primary product offerings are Encryption Intelligence and NetworkSecure™. Encryption Intelligence detects cryptographic exposure, identifies vulnerabilities, and maps dependencies. NetworkSecure™ protects data in transit with provably secure post-quantum cryptography and contributes to establishment of confidential compute environments for complete data sovereignty.

Arqit is an IDC Innovator for Post-Quantum Cryptography (2024) and a multi-award-winner in quantum-safe security. For more information, visit www.arqitgroup.com.

Media relations enquiries:

Arqit: pr@arqit.uk

Investor relations enquiries:

Arqit: investorrelations@arqit.uk

Caution About Forward-Looking Statements

This communication includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, may be forward-looking statements. These forward-looking statements are based on Arqit's expectations and beliefs concerning future events and involve risks and uncertainties that may cause actual results to differ materially from current expectations. These factors are difficult to predict accurately and may be beyond Arqit's control. Forward-looking statements in this communication or elsewhere speak only as of the date made. New uncertainties and risks arise from time to time, and it is impossible for Arqit to predict these events or how they may affect it. Except as required by law, Arqit does not have any duty to, and does not intend to, update or revise the forward-looking statements in this communication or elsewhere after the date this communication is issued. In light of these risks and uncertainties, investors should keep in mind that results, events or developments discussed in any forward-looking statement made in this communication may not occur. Uncertainties and risk factors that could affect Arqit's future performance and cause results to differ from the forward-looking statements in this release include, but are not limited to: (i) the outcome of any legal proceedings that may be instituted against Arqit, (ii) the ability to maintain the listing of Arqit's securities on a national securities exchange, (iii) changes in the competitive and regulated industries in which Arqit operates, variations in operating performance across competitors and changes in laws and regulations affecting Arqit's business, (iv) the ability to implement business plans, forecasts, and other expectations, and identify and realise additional opportunities, (v) the potential inability of Arqit to successfully deliver its operational technology, (vi) the risk of interruption or failure of Arqit's information technology and communications system, (vii) the enforceability of Arqit's intellectual property, (viii) market and other conditions, and (ix) other risks and uncertainties set forth in the sections entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements" in Arqit's annual report on Form 20-F (the "Form 20-F"), filed with the U.S. Securities and Exchange Commission (the "SEC") on 9 December 2025 and in subsequent filings with the SEC. While the list of factors discussed above and in the Form 20-F and other SEC filings are considered representative, no such list should be considered to be a complete statement of all potential risks and uncertainties. Unlisted factors may present significant additional obstacles to the realisation of forward-looking statements.