SEALSQ Corp, a Geneva-based company specializing in semiconductors, PKI, and post-quantum technology, has announced new advancements in post-quantum cryptography (PQC) to protect Bitcoin and blockchain networks from emerging quantum computing threats.
Through its QUASARS project, SEALSQ develops hybrid cryptographic solutions and quantum-resistant hardware designed to secure critical infrastructures such as IoT devices, secure communications, and blockchain protocols against quantum-powered cyberattacks.
Experts including IBM Quantum’s Jay Gambetta and digital asset commentators have highlighted the growing risk quantum computing poses to elliptic curve cryptography (ECC), foundational to Bitcoin and Ethereum. Current research indicates over four million Bitcoins—about 25% of the circulating supply—are stored in addresses exposed by their public keys, making them vulnerable to future quantum attacks.
Major asset manager BlackRock has acknowledged quantum computing as a significant threat in its Bitcoin ETF filings. Threat actors are already engaging in “harvest now, decrypt later” tactics, gathering encrypted blockchain data to decrypt once quantum capabilities mature.
SEALSQ’s quantum-resistant microcontrollers and secure elements offer hardware upgrades compatible with existing systems. These components enable real-time protection against quantum decryption, support hybrid classical and post-quantum cryptographic architectures, and secure blockchain infrastructure without downtime.
“The threats are not on the horizon, they are here. SEALSQ’s post-quantum innovations are designed to future-proof blockchain ecosystems and uphold decentralization, privacy, and individual sovereignty,” said Carlos Moreira, CEO of SEALSQ.
SEALSQ continues to pioneer post-quantum cryptographic hardware and software to ensure the resilience of critical systems including Bitcoin and IoT networks as quantum computing evolves. Their technology aims to facilitate a secure transition to a quantum-secure digital economy.
For more details, visit www.sealsq.com.