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SEALSQ’s Quantum-Resistant Secure Microcontrollers Enhance Smart Grid Resilience Amid Rising Environmental and Cyber Threats

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SEALSQ (NASDAQ: LAES) has highlighted how its quantum-resistant secure microcontrollers can strengthen IoT device security and smart grid resilience. This announcement follows a massive blackout in Spain and Portugal on April 28, 2025, caused by temperature-induced vibrations in high-voltage transmission lines.

The incident, which resulted in a 15-gigawatt power loss affecting millions, demonstrates the vulnerability of grid infrastructure to environmental and cyber threats. SEALSQ's post-quantum technology secures IoT sensors across electrical networks by:

  • Ensuring tamper-proof data collection from environmental monitoring
  • Protecting against next-generation cyberattacks
  • Enabling rapid automated responses to anomalies
  • Supporting secure renewable energy integration

CEO Carlos Moreira emphasizes that these microcontrollers safeguard real-time monitoring systems, allowing early detection of issues like temperature swings or synchronization problems before they escalate into major failures.

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Positive

  • Company's quantum-resistant microcontrollers address a real-world problem demonstrated by recent Spain/Portugal blackout
  • Product has immediate market application in critical infrastructure protection
  • Technology enables early detection and prevention of grid failures, potentially saving millions in downtime costs
  • Solution supports integration of renewable energy sources, expanding market opportunities
  • Company's products are positioned to capitalize on growing quantum computing security threats

Negative

  • No specific sales figures or revenue data provided
  • No mention of current market penetration or existing contracts
  • No information about production costs or profit margins
  • Competitive positioning against other security solutions not addressed

News Market Reaction

-0.77%
1 alert
-0.77% News Effect

On the day this news was published, LAES declined 0.77%, reflecting a mild negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Geneva, Switzerland, April 29, 2025 (GLOBE NEWSWIRE) --

SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or "Company"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, today highlighted how its quantum-resistant secure microcontrollers can strengthen the resilience of IoT connected devices and networks including electrical grids. The massive blackout that disrupted Spain and Portugal on April 28, 2025, which was triggered by extreme atmospheric conditions, underscores the urgent need for secure, reliable IoT solutions to safeguard critical infrastructure. By securing the IoT ecosystem, SEALSQ’s technology ensures that the data driving smart grids remains trustworthy, even under extreme environmental conditions or cyber threats.

According to Spain’s grid operator, Red Eléctrica (REE), the blackout resulted from temperature-induced vibrations in high-voltage transmission lines (400kV), causing synchronization failures between Spain and France’s electrical systems. This cascade led to the loss of 15 gigawatts of power in seconds, affecting millions of customers. Such environmental disruptions, combined with growing cyber threats, highlight vulnerabilities in aging grid infrastructure.

SEALSQ’s post-quantum secure microcontrollers address these challenges by securing IoT sensors and monitoring devices deployed across electrical networks. These chips, embedded in devices like substations and transmission line sensors, ensure the authenticity, integrity, and confidentiality of critical environmental and operational data, such as temperature, voltage, and oscillations. Equipped with quantum-resistant cryptographic algorithms, SEALSQ’s technology protects against next-generation cyberattacks, including those enabled by quantum computing, ensuring grid operators can trust real-time data for decision-making.

“IoT sensors are transforming smart grids by enabling real-time monitoring and automated fault detection,” said Carlos Moreira, CEO of SEALSQ. “However, their effectiveness depends on secure data transmission. Our quantum-resistant microcontrollers safeguard these devices, empowering grid operators to detect anomalies like temperature swings or synchronization issues early and act before failures escalate.”

By integrating SEALSQ’s secure microcontrollers, grid operators can:

  • Ensure secure, tamper-proof data collection from IoT sensors monitoring environmental and grid parameters.
  • Protect against cyberattacks that could manipulate or disrupt critical grid communications.
  • Enable rapid, automated responses to anomalies, such as isolating faulty segments to prevent cascading failures.
  • Support the integration of renewable energy sources into smart grids by securing data at interconnection points.

As smart grids evolve to incorporate renewable energy and advanced analytics, SEALSQ’s secure IoT architecture enhances reliability, protects against cyber threats, and supports system reconfiguration to minimize power losses. This is critical for maintaining voltage stability and operational efficiency in volatile conditions.

SEALSQ remains committed to protecting global critical infrastructure with cutting-edge, quantum-resistant solutions that address the challenges of an increasingly connected and unpredictable world.

About SEALSQ:
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.

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.

For more information on our Post-Quantum Semiconductors and security solutions, please visit www.sealsq.com.

Forward-Looking Statements
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 anticipates 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'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's filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ with the SEC.

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.

SEALSQ Corp.
Carlos Moreira
Chairman & CEO
Tel: +41 22 594 3000
info@sealsq.com
SEALSQ Investor Relations (US)
The Equity Group Inc.
Lena Cati
Tel: +1 212 836-9611
lcati@equityny.com


FAQ

How did SEALSQ (LAES) respond to the Spain-Portugal blackout of April 28, 2025?

SEALSQ highlighted how its quantum-resistant secure microcontrollers can protect electrical grids following the Spain-Portugal blackout. Their technology secures IoT sensors and monitoring devices across electrical networks, enabling early detection of anomalies like the temperature-induced vibrations that caused the 15-gigawatt power loss.

What are the key features of SEALSQ's quantum-resistant microcontrollers for smart grids?

SEALSQ's microcontrollers offer tamper-proof data collection, protection against quantum computing cyber attacks, automated response to anomalies, and secure integration of renewable energy sources. They ensure authenticity and integrity of critical environmental and operational data from grid sensors.

How does SEALSQ protect smart grids against environmental and cyber threats?

SEALSQ secures smart grids through quantum-resistant microcontrollers that protect IoT sensors monitoring temperature, voltage, and oscillations. The technology enables trusted real-time data transmission and automated fault detection, helping prevent cascading failures in electrical networks.

What caused the April 28, 2025 blackout in Spain and Portugal?

According to Spain's grid operator REE, temperature-induced vibrations in 400kV high-voltage transmission lines caused synchronization failures between Spain and France's electrical systems, resulting in a 15-gigawatt power loss affecting millions of customers.

How do SEALSQ's microcontrollers support renewable energy integration?

SEALSQ's secure IoT architecture enhances reliability and supports system reconfiguration by securing data at renewable energy interconnection points, maintaining voltage stability and operational efficiency under volatile conditions.
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