US SEC’s Crypto Task Force Urged to Quantum-Proof Digital Assets
The U.S. Securities and Exchange Commission’s (SEC) Crypto Assets Task Force has been issued a stark warning: quantum computing could shatter the security of Bitcoin, Ethereum, and all digital assets unless urgent action is taken. A formal proposal, the Post-Quantum Financial

Early Crypto Safeguards Against the Quantum Threat
The time to act is before the crisis hits.
- The Core Threat:
- Cryptographically Relevant Quantum Computers (CRQC) could break ECDSA and SHA-256 — the cryptographic backbone of Bitcoin and Ethereum
- Once cracked, attackers could steal funds, forge transactions, and collapse trust
- “Harvest Now, Decrypt Later”:
- Adversaries are already intercepting and storing encrypted blockchain data
- They plan to decrypt it once quantum computers are powerful enough
- Proposed Safeguards (PQFIF):
- Automated vulnerability assessments of exchanges, wallets, and custodians
- Prioritize high-risk systems (e.g., institutional holdings)
- Phased migration to NIST-standardized post-quantum algorithms (FIPS 203–205, HQC)
- Use hybrid cryptography (classical + post-quantum) during transition
“A sudden quantum breakthrough could cause systemic risk, catastrophic investor losses, and a complete erosion of market confidence.”
— PQFIF Submission to SEC
Bitcoin Devs Propose Quantum-Resistant Upgrade
The Bitcoin community is already responding.
- New BIP Proposal:
- “Post Quantum Migration and Legacy Signature Sunset” (July 2025)
- Aims to phase out vulnerable signature schemes like ECDSA
- Migration Plan:
- Phase 1: Block new funds from being sent to legacy addresses (P2PKH, P2SH) vulnerable to quantum attacks
- Phase 2 (in ~5 years): Freeze all BTC in legacy addresses, making them unspendable unless moved to quantum-safe wallets
This is a nuclear option, but necessary to prevent mass theft.
“Quantum computing poses the most serious threat to Bitcoin’s security yet—potentially within five years.”
— David Carvalho, CEO of Naoris Protocol
Why This Matters: Q-Day Could Be as Early as 2028
Experts warn that “Q-Day”—when quantum computers can break Bitcoin’s encryption—could arrive by 2028.
- Current Status:
- Quantum computers are not yet powerful enough
- But progress is accelerating (e.g., IBM, Google, China)
- Systemic Risk:
- A successful attack could undermine the entire digital asset ecosystem
- Custodians, exchanges, and payment processors could face operational chaos
- El Salvador’s Precaution:
- Already split its $678M BTC holdings across 14 wallets to reduce exposure to any single quantum attack
Final Takeaway: The Clock Is Ticking
- ✅ Quantum threat is real — not science fiction
- ✅ “Harvest Now, Decrypt Later” means the attack has already begun
- ✅ NIST standards exist — the tools are ready
- ✅ Bitcoin devs are planning upgrades — but coordination is key
The SEC’s Crypto Task Force now faces a historic responsibility:
To ensure that the financial infrastructure of the future is built on quantum-proof foundations—before it’s too late.
And if action is delayed?
The next market crash might not come from regulation or sentiment—
It could come from a quantum computer.