SEC Task Force Says Quantum Computing Could Threaten Bitcoin by 2028, Urges Move to Quantum-Resistant Systems

• PQFIF warns quantum computing could break Bitcoin, Ethereum, and other networks’ cryptography, risking trillions in assets.

• The proposal highlights the “Harvest Now, Decrypt Later” threat and urgent migration to post-quantum cryptography.

• Analyst Merlijn The Trader cites Algorand and Hedera as early adopters of quantum-ready security and institutional partnerships.

Quantum threat to crypto: SEC warns of cryptographic risk by 2028; read mitigation steps and migrate to quantum-resistant systems now. (COINOTAG)

SEC task force warns quantum computing could threaten crypto security by 2028, urging urgent migration to quantum-resistant systems.

• PQFIF warns quantum computing could break Bitcoin, Ethereum, and other networks’ cryptography, risking trillions in assets.
• The proposal notes the “Harvest Now, Decrypt Later” threat, with adversaries storing encrypted data for future quantum attacks.
• Analyst Merlijn The Trader points to Algorand and Hedera as early adopters of quantum ready security and institutional partnerships.

A proposal submitted to the SEC Crypto Assets Task Force has warned that the rise of quantum computing could compromise the security of the global digital asset ecosystem. The document, titled the Post-Quantum Financial Infrastructure Framework (PQFIF), stressed that advancements in cryptographically relevant quantum computers (CRQC) could break existing encryption standards protecting trillions of dollars in assets.

The framework indicated the urgent need for migration to quantum-resistant systems to prevent catastrophic investor losses and a collapse of market confidence.

What is the quantum computing threat to crypto?

The quantum threat to crypto is the risk that cryptographically relevant quantum computers will be able to break the public-key and signature schemes that secure blockchains like Bitcoin and Ethereum. If achieved, this would enable decryption of stored data and forging of transactions, endangering custodial wallets, exchanges, and long-term records.

How imminent is the risk and what does PQFIF recommend?

The PQFIF submission, authored by Daniel Bruno Corvelo Costa, warns that “Q‑Day” could arrive as early as 2028. It recommends automated vulnerability assessments, prioritized protection for high-risk systems, and a phased migration combining classical and post‑quantum cryptography. The framework references recent NIST standards (2024) and suggests HQC as a fallback.

Why is “Harvest Now, Decrypt Later” especially dangerous?

“Harvest Now, Decrypt Later” describes adversaries collecting encrypted data today with the intention to decrypt once quantum capabilities mature. This is dangerous because it creates a time-lagged exposure: data considered secure now may become readable later, amplifying long-term confidentiality and integrity risks for financial records and custody systems.

How can digital-asset platforms prepare now?

Platforms should begin with inventory and risk-scoring of cryptographic assets, prioritize custodial keys and exchange hot wallets, and adopt hybrid cryptography that layers post-quantum algorithms over existing systems. Regular cryptographic upgrades and institutional coordination are essential to limit migration costs and operational risk.

What technical standards are referenced?

The submission cites NIST-finalized standards (2024) and FIPS 203–205 as part of a standards-based roadmap. It also lists HQC as a recommended backup algorithm. These references provide an actionable baseline for regulators and infrastructure teams to align migration plans with recognized cryptographic guidance.

Are any blockchains already preparing?

Market analyst Merlijn The Trader highlighted Algorand and Hedera as early adopters of quantum-ready approaches, noting research into state proofs, quantum-resistant consensus elements, and institutional partnerships. These preparations may yield structural advantages if the quantum risk becomes mainstream.

Frequently Asked Questions

When could quantum computers realistically threaten blockchain cryptography?

Experts referenced in the PQFIF submission estimate that Q‑Day could occur as early as 2028, depending on research breakthroughs and scale-up of qubit systems. Planning and phased migration should therefore begin immediately to reduce systemic exposure.

What steps can exchanges take first?

Exchanges should prioritize protecting custodial private keys, implement layered (hybrid) cryptography, and run continuous automated vulnerability scans. They should also document migration plans and coordinate with institutional counterparties.

Key Takeaways

• Quantum risk is real: PQFIF warns Q‑Day could arrive by 2028 and endanger current blockchain cryptography.
• Immediate action required: Inventory, automated assessments, and hybrid cryptography are top priorities.
• Preparation matters: Networks already researching quantum-resilience (e.g., Algorand, Hedera) may gain structural advantages.

Conclusion

The PQFIF submission to the SEC underscores the seriousness of the quantum threat to crypto and the need for an urgent, standards-aligned migration to post-quantum defenses. COINOTAG recommends organizations begin prioritized assessments and hybrid deployments now to preserve investor confidence and protect assets as cryptographic realities evolve.