SEALSQ Quantum-Resistant Technology Tackles Potential Bitcoin’s Quantum Vulnerabilities

Rhea-AI Summary

SEALSQ (NASDAQ: LAES) has announced advancements in post-quantum cryptography (PQC) to protect Bitcoin and blockchain networks from quantum computing threats. Through its QUASARS project, the company is developing hybrid cryptographic solutions and quantum-resistant hardware for IoT devices, secure communications, and blockchain protocols.

The company highlights that over 4 million BTC (25% of usable supply) are vulnerable to quantum attacks due to exposed public keys. BlackRock has acknowledged this risk in its Bitcoin ETF filings. SEALSQ's PQC-enabled microcontrollers and secure elements offer protection against quantum decryption attacks while enabling hybrid cryptographic architectures that combine classical and quantum-resistant algorithms.

Positive

• Development of quantum-resistant hardware and software solutions for blockchain security
• Strategic positioning in the emerging post-quantum cryptography market
• Offering practical solutions for protecting vulnerable Bitcoin addresses

Negative

• No specific revenue or market size projections provided
• Competing against larger technology companies in quantum security space

Insights

Cybersecurity and Blockchain Expert

SEALSQ is positioning itself as a leader in quantum-resistant technology to protect blockchain networks as quantum computing advances threaten cryptographic security.

SEALSQ's announcement represents a significant positioning in the emerging post-quantum cryptography (PQC) market. The company has identified a genuine technological vulnerability that could have profound implications for cryptocurrency markets. The threat to Bitcoin's security isn't theoretical—approximately 4 million BTC (25% of usable supply) sits in addresses with exposed public keys, making them vulnerable to quantum attacks.

The company's QUASARS project shows technical merit in its hybrid approach, combining classical and quantum-resistant algorithms rather than attempting a complete cryptographic replacement. This pragmatic strategy acknowledges the reality that cryptographic transitions require gradual implementation to maintain system stability.

What's particularly notable is the validation from institutional players. BlackRock's inclusion of quantum computing as a material risk in its Bitcoin ETF filings signals mainstream financial recognition of this technological threat. This external validation strengthens SEALSQ's market positioning.

The "Harvest Now, Decrypt Later" attack vector mentioned is a legitimate security concern in cryptographic circles—adversaries are already collecting encrypted data with the intention of decrypting it once quantum capabilities mature. This creates urgency for SEALSQ's solutions.

From a competitive standpoint, SEALSQ is positioning itself at the intersection of semiconductor hardware and post-quantum cryptography, which differentiates it from pure software-based approaches. Their focus on "drop-in hardware upgrades" suggests attention to practical implementation challenges that often plague cryptographic transitions.

While the press release offers limited technical specifics about their actual implementations, SEALSQ appears to be correctly identifying both the threat landscape and potential solution approaches in the quantum-resistant cryptography space.

Geneva, Switzerland, July 02, 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 reaffirmed its commitment to a quantum-secure future by announcing new advancements in post-quantum cryptography (PQC) aimed at mitigating existential threats to Bitcoin and blockchain networks.

Several months ago, SEALSQ raised alarms about the looming risk posed by quantum computing to existing cryptographic frameworks https://thequantuminsider.com/2024/12/24/sealsq-quantum-resistant-technology-tackles-potential-bitcoins-quantum-vulnerabilities/. Through its QUASARS (Quantum Resistant Authentication Security and Robustness for Systems) project, SEALSQ is pioneering hybrid cryptographic solutions and quantum-resistant hardware designed to protect mission-critical infrastructures, such as IoT devices, secure communications, and blockchain protocols, from quantum-powered cyberattacks.

Recent industry analyses, including insights from prominent digital asset commentators such as @AltcoinGordon and IBM Quantum’s Jay Gambetta, the severity of the threat. Quantum computing is rapidly approaching the capability to break the elliptic curve cryptography (ECC) that underpins Bitcoin and Ethereum. According to cybersecurity researchers, over 4 million BTC, approximately 25% of the usable supply, are stored in addresses with exposed public keys, making them prime targets once a cryptographically relevant quantum computer arrives.

BlackRock, the world’s largest asset manager, has formally recognized this risk by listing quantum computing as a material threat in its Bitcoin ETF filings. The threat is not hypothetical: Harvest Now, Decrypt Later attacks are already underway, as nation-states siphon encrypted blockchain data in anticipation of breaking it post-Q-Day.

SEALSQ: Delivering Quantum Resilience Now
SEALSQ is at the forefront of solving this challenge. The Company’s PQC-enabled microcontrollers and secure elements offer drop-in hardware upgrades for existing digital systems. These components are designed to:

• Protect against quantum decryption attacks in real time.
• Enable hybrid cryptographic architectures combining classical and quantum-resistant algorithms.
• Secure the blockchain ledger and wallet infrastructure without requiring prolonged network downtime.
  
  

“Our mission is to provide the building blocks for a quantum-secure digital economy,” said Carlos Moreira, CEO of SEALSQ. “The threats are not on the horizon, they are here. SEALSQ's post-quantum innovations are designed to future-proof blockchain ecosystems and uphold the core values of decentralization, privacy, and individual sovereignty.”

SEALSQ’s Commitment to a Quantum-Secure Future
SEALSQ is proactively addressing these challenges by developing quantum-resistant cryptographic solutions. Its innovations in hybrid post-quantum hardware and software ensure that critical systems, including Bitcoin and IoT networks, remain resilient in the quantum era. SEALSQ’s efforts empower organizations to transition securely into a future where quantum computing is a reality.
With its cutting-edge technology and dedication to cybersecurity, SEALSQ continues to lead the way in building a secure digital future that is resistant to even the most advanced threats.

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 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'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@theequitygroup.com

FAQ

What is SEALSQ's QUASARS project and how does it protect Bitcoin?

SEALSQ's QUASARS (Quantum Resistant Authentication Security and Robustness for Systems) project develops hybrid cryptographic solutions and quantum-resistant hardware to protect blockchain protocols and IoT devices from quantum-powered cyberattacks.

How many Bitcoin are currently vulnerable to quantum computing attacks?

According to the announcement, over 4 million BTC, approximately 25% of the usable supply, are stored in addresses with exposed public keys, making them vulnerable to quantum computing attacks.

What solutions does SEALSQ (NASDAQ: LAES) offer for quantum security?

SEALSQ offers PQC-enabled microcontrollers and secure elements that provide real-time protection against quantum decryption attacks and enable hybrid cryptographic architectures combining classical and quantum-resistant algorithms.

Why has BlackRock identified quantum computing as a risk for Bitcoin?

BlackRock, the world's largest asset manager, has listed quantum computing as a material threat in its Bitcoin ETF filings because quantum computers could potentially break the elliptic curve cryptography (ECC) that underpins Bitcoin.

What are Harvest Now, Decrypt Later attacks mentioned in SEALSQ's announcement?

These are attacks where nation-states collect encrypted blockchain data now, with the intention of decrypting it later when quantum computers become powerful enough to break current encryption methods.