Qastle Launch: World’s First Quantum-Secured Hot Wallet Debuts for Mass Blockchain Security

Krown Technologies and Quantum eMotion have officially launched Qastle on November 1, 2025, heralding it as the world’s first quantum-secured hot wallet for mainstream digital asset users.
To achieve this level of security, Qastle leverages both post-quantum cryptography (PQC)—cryptography designed to withstand attacks from quantum computers—and quantum random number generation (QRNG) to secure user keys and transactions. This hybrid approach is positioned as a direct response to growing concerns that quantum computing could one day break current blockchain and crypto security protocols.

Qastle’s launch marks a significant milestone for both companies, serving as their first positive cash flow channel and as a showcase of their joint innovation in quantum-safe blockchain security. According to Quantum eMotion’s press release, Qastle is available across virtually all platforms—including iPhone, Android, tablets, browser extensions, laptops, and desktops—making secure digital asset storage accessible to a broad audience, not just crypto or tech experts.

“Qastle isn’t just another wallet—it’s the dawn of a new era in blockchain security. On November 1st, the world will see what true quantum protection looks like, and it will be available in everyone’s pocket, on every device they own.”

—James Stephens, Founder & CEO of Krown Technologies

“Qastle is the culmination of years of research and collaboration, marrying QeM’s pioneering QRNG technology with Krown’s blockchain innovation. This launch proves that quantum-safe security is not just theoretical—it is real, scalable, and ready for mass adoption.”

—Francis Bellido, CEO of Quantum eMotion

The companies emphasize that Qastle is not just a technical demonstration but a real, scalable product ready for broad adoption. Recent milestones in its development include the integration of advanced post-quantum algorithms such as SLHDSA and ML-KEM, providing robust digital signatures and encrypted backups .

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How Qastle Is Different from Previous Hot Wallets ?

Qastle’s quantum-secured approach sets it apart from traditional hot wallets, which generally rely on cryptographic algorithms that could be vulnerable to quantum attacks in the near future. Here’s how Qastle compares:

While some competitors have explored post-quantum cryptography in closed tests, Qastle is the first to pair PQC and QRNG in a widely available, production-ready wallet.

Industry Reaction and Market Impact On Qastle Launch

Initial coverage in financial and technology outlets underscores Qastle’s accessibility and innovation, but widespread consumer feedback has yet to materialize. Executives and analysts alike see Qastle as a potential catalyst for broader adoption of quantum-safe blockchain technology, especially as quantum computing’s impact on cryptography becomes more widely understood. The launch also signals Krown Technologies’ and Quantum eMotion’s move toward sustainable revenue models through quantum-grade security solutions.

The companies have also deepened partnerships—such as with Esposito Intellectual Enterprises—to accelerate commercialization and market reach for Qastle and future quantum-secured wallet products, leveraging global networks and influencer support for mainstream exposure 

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Sources

• StockTitan: Krown Technologies, Quantum eMotion Launches Qastle Nov 1
• Quantum eMotion: Official Qastle Launch Press Release
• Newsfile Corp: Krown Technologies and Quantum eMotion Partner with Esposito Intellectual Enterprises