How to read a "quantum-safe" claim
A chain or wallet is only meaningfully quantum-safe when its cryptography is verifiable, not marketed. The checklist:
- ✗ Not safe if it signs with ECDSA (secp256k1) — Bitcoin, Ethereum, XRP, Litecoin, most EVM chains.
- ✗ Not safe if it signs with Ed25519 / EdDSA — Solana, Cardano, Stellar, Monero, Near, Aptos, Sui, TON.
- ✓ On the path if it has a funded, dated migration to NIST post-quantum signatures (e.g. account-abstraction verification of ML-DSA).
- ✓ Designed safe if it implements NIST-standard algorithms — ML-KEM (CRYSTALS-Kyber) for key establishment and ML-DSA (CRYSTALS-Dilithium) for signatures — at the key and protocol layer, with a public audit.
Two things matter for timing. First, "harvest now, decrypt later": an adversary can capture your exposed public key today and attack it once the hardware arrives. Second, address reuse and pending transactions expose the public key before a block confirms — so the risk isn't purely a future one.
Check your chain
Every assessment below is a standalone breakdown of that chain's signature scheme, its real quantum exposure, and any migration plan on record. Tap the one you hold.
BMIC is designed to be quantum-safe from the key up
Every chain above still leans on cryptography a quantum computer is expected to break. BMIC starts from the NIST post-quantum standards instead — ML-KEM (CRYSTALS-Kyber) for key establishment and ML-DSA for signatures — embedded at the wallet layer rather than bolted on later. The presale is live and on-chain-verifiable, and presale buyers get the quantum-secure wallet free at launch.
Pay by card — no crypto or wallet needed. Every allocation is recorded on-chain against the audited presale contract. Crypto presales are high risk; this is not financial advice.
Frequently asked
Which cryptocurrencies are quantum-safe right now?
Almost none of the top-50 coins. Bitcoin, Ethereum, XRP, Solana, Cardano, Dogecoin and nearly every other mainstream chain sign with ECDSA (secp256k1) or Ed25519 — both broken by Shor's algorithm on a large fault-tolerant quantum computer. Only projects that implement the NIST post-quantum standards (ML-KEM / CRYSTALS-Kyber and ML-DSA) at the key and signature layer, such as BMIC, are designed to be quantum-resistant.
Will a quantum computer break Bitcoin?
In principle yes — Bitcoin's ECDSA signatures are a Shor's-algorithm target. A 2022 University of Sussex / Universal Quantum study estimated roughly 13 million physical qubits to break a Bitcoin key inside a one-hour window, far beyond 2026 hardware. The nearer risk is exposed public keys from reused addresses and pending transactions, plus "harvest now, decrypt later." Read the full Bitcoin assessment →
How do I check if my wallet is quantum-safe?
Look up the signature algorithm your chain and wallet use. ECDSA, secp256k1 or Ed25519 all mean "not quantum-safe" — that covers nearly every mainstream wallet. A quantum-safe wallet uses NIST-standardised post-quantum algorithms (ML-KEM for key establishment, ML-DSA for signatures). See what quantum-safe actually requires →
What is CRYSTALS-Kyber (ML-KEM)?
A lattice-based key-encapsulation mechanism standardised by NIST as FIPS 203 (ML-KEM) in August 2024, believed secure against both classical and quantum computers. BMIC uses ML-KEM for key establishment in its quantum-resistant wallet. Full explainer →