Geneva, Switzerland, March  20, 2026  (GLOBE NEWSWIRE) --   SEALSQ Corp (NASDAQ:LAES) (&#34;SEALSQ&#34; or &#34;Company&#34;), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum

LAES

SEALSQ Deploys Post-Quantum Cryptography to Secure Blockchain and Digital Transaction Infrastructures Through the Deployment of Post-Quantum Cryptographic (PQC) Technologies

SEALSQ Develops Quantum-Resilient Solutions for Blockchain Security

<section class="insight" data-version="1">
  <section data-block="information">
    <h3>Information</h3>
    <p>Geneva, Switzerland, March  20, 2026  (GLOBE NEWSWIRE) --   SEALSQ Corp (NASDAQ:LAES) (&amp;#34;SEALSQ&amp;#34; or &amp;#34;Company&amp;#34;), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum</p>
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  <section data-block="ai-summary-paragraph">
    <h3>AI Summary</h3>
    <p>SEALSQ Corp is actively reinforcing blockchain security against quantum computing threats by deploying post-quantum cryptographic technologies across hardware and protocols. This proactive approach positions the company well in the evolving cybersecurity landscape, likely boosting investor confidence and enhancing its market position.</p>
  </section>

  <section data-block="ai-summary-bullets">
    <h3>Key Points</h3>
    <ul><li>SEALSQ is advancing quantum-resistant security for financial transactions.</li><li>The company integrates post-quantum cryptography into blockchain and hardware products.</li><li>Potential threats from quantum computing necessitate proactive security measures.</li><li>SEALSQ collaborates with WeCan to secure blockchain transactions.</li><li>PQC implementation aims to enhance trust in decentralized systems.</li></ul>
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  <section data-block="companies-mentioned">
    <h3>Companies Mentioned</h3>
    <ul><li><strong>WISeKey International Holding Ltd (WKEY)</strong>: Parent company providing supportive infrastructure for SEALSQ&#039;s offerings.</li><li><strong>WeCan</strong>: Collaborative partner aimed at strengthening financial blockchain security.</li></ul>
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  <section data-block="category">
    <h3>Corporate Developments</h3>
    <p>This falls under &#039;Corporate Developments&#039; as SEALSQ&#039;s advancements in post-quantum security indicate strategic growth and product innovation, reinforcing its market position in the cybersecurity sector.</p>
  </section>

  <section data-block="market-moving">
    <h3>Market-Moving</h3>
    <ul><li>Increased demand for quantum-resistant technologies could significantly boost LAES revenues.</li><li>Partnerships with financial platforms enhance credibility and growth potential.</li><li>Market volatility in quantum computing may spur investments towards LAES security solutions.</li></ul>
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  <section data-block="key-facts">
    <h3>Key Facts</h3>
    <ul><li>SEALSQ is implementing NIST-selected PQC algorithms for enhanced security.</li><li>Collaboration with WeCan focuses on securing blockchain transactions.</li><li>Post-quantum cryptography is anticipated to be a significant market driver.</li></ul>
  </section>

  <section data-block="trading-thesis">
    <h3>Trading Thesis</h3>
    <p>Consider buying LAES as quantum security solutions gain market traction in the next quarters.</p>
  </section>
</section>


<link type="text/css" rel="stylesheet" href="https://www.globenewswire.com/styles/gnw_nitf.css"></link><p align="left" style="text-align: left;">Geneva, Switzerland, March  20, 2026  (GLOBE NEWSWIRE) -- <br></br></p>  <p align="justify">SEALSQ Corp (NASDAQ:<a class="ticker" href="https://www.benzinga.com/quote/LAES">LAES</a>) (&#34;SEALSQ&#34; or &#34;Company&#34;), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, today announced that as quantum computing advances toward practical applicability, it is strengthening blockchain and digital transaction infrastructures through the deployment of post-quantum cryptographic (PQC) technologies at both hardware and protocol levels.</p>  <p align="justify">A frequently raised question in the industry is: "How many qubits are needed to break Bitcoin?" While a few thousands qubits could theoretically compromise RSA or elliptic curve cryptography using Shor's algorithm, real-world constraints such as quantum error correction increase this requirement to tens of millions or even billions of physical qubits depending on implementations assumptions. With current quantum systems still limited to noisy intermediate-scale quantum (NISQ) devices, the threat remains future-oriented—but increasingly credible.</p>  <p align="justify">In anticipation of this shift, SEALSQ is implementing a crypto-agile, quantum-resilient security architecture designed to protect blockchain ecosystems before large-scale quantum computers become operational. At the core of this approach is the integration of NIST-selected PQC algorithms, including lattice-based cryptography such as CRYSTALS-Kyber for key encapsulation (KEM) and CRYSTALS-Dilithium for digital signatures, replacing or augmenting traditional elliptic curve schemes.</p>  <p align="justify">These algorithms are embedded directly into SEALSQ's secure elements and TPM-class chips, enabling hardware root-of-trust, secure key generation, and tamper-resistant key storage. By allowing to anchor blockchain private keys in certified secure hardware, SEALSQ helps mitigate risks associated with key extraction, side-channel attacks, and future quantum decryption.</p>  <p align="justify">To protect transaction integrity and identity, SEALSQ can integrate post-quantum digital signatures into blockchain transactions, ensuring long-term non-repudiation and resistance against quantum-enabled forgery. These signatures are supported by PKI infrastructures upgraded to support PQC certificates, enabling quantum-safe authentication across distributed systems.</p>  <p align="justify">In collaboration with WeCan, a Swiss Blockchain financial platform, SEALSQ applies these technologies to secure financial-grade blockchain transactions, incorporating secure multiparty computation (MPC), zero-knowledge proof (ZKP) frameworks, and hardware-backed identity validation to ensure compliance, privacy, and auditability. SEALSQ combines PQC with asynchronous Byzantine Fault Tolerant (aBFT) consensus, ensuring both cryptographic and network-level resilience.</p>  <p align="justify">Through SEALCOIN.AI, which focuses on decentralized physical internet with DePIN technology and house the development of the SEALCOIN platform, and a subsidiary of SEALSQ's parent company WISeKey International Holding Ltd (("WISeKey", SIX: WIHN, NASDAQ:<a class="ticker" href="https://www.benzinga.com/quote/WKEY">WKEY</a>) is a global leader in cybersecurity, digital identity, and IoT solutions platform, it extends this security architecture into machine-to-machine transaction infrastructures, where authenticated devices and AI agents operate as autonomous economic actors across distributed environments. While initially deployed within satellite networks such as WISeSat.Space, another WISeKey subsidiary which focuses on space technology for secure satellite communication, specifically for IoT applications, SEALCOIN protocol is designed as a cross-industry transaction layer enabling secure, low-latency interactions between devices across energy, mobility, data, and space communication domains.</p>  <p align="justify">By combining hardware-anchored identity, certificate-based authentication, secure transactions settlement, and post quantum capabilities, SEALCOIN network enables devices to securely exchange data, access services, and settle transactions in QAIT tokens across decentralized networks. In space-based environments, this architecture supports trusted satellite communications and orbital transaction flows; more broadly, it establishes a unified infrastructure for secure machine economies across both terrestrial and non-terrestrial systems.</p>  <p align="justify">Through WISeID.com, a digital identity platform and a WISeKey subsidiary, SEALSQ delivers decentralized identity (DID) frameworks secured with PQC, enabling strong authentication of users, devices, and satellites. These identities are anchored in hardware-based secure enclaves and protected using quantum-resistant credential issuance and verification mechanisms.</p>  <p align="justify">Finally, WISeSat.Space integrates these capabilities into a secure satellite infrastructure layer, where onboard chips embed post-quantum secure boot, firmware integrity verification, and encrypted communication channels, ensuring end-to-end trust from ground to space. This enables trusted space transactions, where blockchain operations, identity verification, and data exchange occur securely across orbital networks.</p>  <p align="justify">"Quantum computing represents both a challenge and an opportunity," said Carlos Creus Moreira, Founder and CEO of SEALSQ. "By embedding post-quantum cryptography directly into semiconductors, blockchain protocols, and space-based infrastructure, we are taking a proactive approach to this shift, ensuring that trust in digital systems is not only preserved, but significantly strengthened. Our strategy is to integrate security at every layer of the technology stack, from hardware to decentralized networks, so that governments, enterprises, and critical industries can operate with confidence in the quantum era."</p>  <p align="justify">By combining crypto-agility, hardware root-of-trust, PQC algorithms, and secure distributed architectures, SEALSQ is building a quantum-resilient foundation for blockchain, financial systems, and the emerging space economy.</p>  <p align="justify"><strong>About SEALSQ:</strong><br></br>SEALSQ is a leading innovator in Post-Quantum Technology hardware and software solutions. Our technology seamlessly integrates Semiconductors, PKI (Public Key Infrastructure), and Provisioning Services, with a strategic emphasis on developing state-of-the-art Quantum Resistant Cryptography and Semiconductors designed to address the urgent security challenges posed by quantum computing. As quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography (ECC) are increasingly vulnerable.</p>  <p align="justify">SEALSQ is pioneering the development of Post-Quantum Semiconductors that provide robust, future-proof protection for sensitive data across a wide range of applications, including Multi-Factor Authentication tokens, Smart Energy, Medical and Healthcare Systems, Defense, IT Network Infrastructure, Automotive, and Industrial Automation and Control Systems. By embedding Post-Quantum Cryptography into our semiconductor solutions, SEALSQ ensures that organizations stay protected against quantum threats. Our products are engineered to safeguard critical systems, enhancing resilience and security across diverse industries.</p>  <p align="justify">For more information on our Post-Quantum Semiconductors and security solutions, please visit <a href="https://www.globenewswire.com/Tracker?data=YJxK6FlxjvkNH-K-YEyW41rcQXS0zPHY0qWFdqzfgUYKKzoYZ0XCHxQEJ4A9RUFMfaUjMS5B_NCf_bUuhcz9CQ==" rel="nofollow" target="_blank">www.sealsq.com</a>.</p>  <p align="justify"><strong>Forward-Looking Statements</strong><br></br>This communication expressly or implicitly contains certain forward-looking statements concerning SEALSQ Corp and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include SEALSQ&#39;s ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; and the risks discussed in SEALSQ&#39;s filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ with the SEC.</p>  <p align="justify">SEALSQ Corp is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.</p> <table style="border-collapse: collapse; width:100%; border-collapse:collapse ;"><tr><td style="vertical-align: top ; ">SEALSQ Corp.<br></br>Carlos Moreira<br></br>Chairman &amp; CEO<br></br>Tel: +41 22 594 3000<br></br>info@sealsq.com</td><td style="vertical-align: top ; ">SEALSQ Investor Relations (US)<br></br>The Equity Group Inc.<br></br>Lena Cati<br></br>Tel: +1 212 836-9611 <br></br>lcati@theequitygroup.com<br></br><br></br></td></tr></table> <p><br></br></p> <img alt="" class="__GNW8366DE3E__IMG" src="https://www.globenewswire.com/newsroom/ti?nf=OTY3NTg2OSM3NDk2MDM4IzIyNTQ4NTY="></img> <br></br><img alt="" src="https://ml.globenewswire.com/media/MzkyODkxYzItMjExMC00OWEzLTkyMzYtNzhiODE4ZDc2MzA0LTEyNjY0MDUtMjAyNi0wMy0yMC1lbg==/tiny/SEAL-Semiconductors.png" referrerpolicy="no-referrer-when-downgrade"></img><p><a href="https://www.globenewswire.com/NewsRoom/AttachmentNg/4071513d-3f7c-4a38-a055-8da38cfb60df"><img src="https://ml.globenewswire.com/media/4071513d-3f7c-4a38-a055-8da38cfb60df/small/seal-logo-png.png" border="0" width="150" height="69" alt="Primary Logo"></img></a></p>

SEALSQ Corp is actively reinforcing blockchain security against quantum computing threats by deploying post-quantum cryptographic technologies across hardware and protocols. This proactive approach positions the company well in the evolving cybersecurity landscape, likely boosting investor confidence and enhancing its market position.

sealsq-deploys-post-quantum-cryptography-to-secure-blockchain-and-digital-transaction-infrastructures-through-the-deployment-of-post-quantum-cryptographic-pqc-technologies

SEALSQ Deploys Post-Quantum Cryptography to Secure Blockchain and Digital Transaction Infrastructures Through the Deployment of Post-Quantum Cryptographic (PQC) Technologies

AI Summary

Sentiment Rationale

Trading Thesis

Market-Moving

Key Facts

Companies Mentioned

Corporate Developments

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