Assessing Your Quantum Risk
Your crypto's quantum safety depends entirely on the cryptography it uses. Here is a clear breakdown of which assets are vulnerable and which are not.
Vulnerable: ECDSA-Based Cryptocurrencies
Bitcoin, Ethereum, Solana, Cardano, Avalanche, Polygon, and the vast majority of cryptocurrencies use elliptic curve digital signature algorithm (ECDSA) on curves like secp256k1 or Ed25519. Shor's algorithm on a quantum computer can break all of these. If you hold any of these tokens, your assets are quantum-vulnerable.
How the Attack Would Work
Every time you send a transaction, your public key is broadcast to the blockchain and stored permanently. A quantum computer running Shor's algorithm can mathematically derive your private key from that public key. With your private key, an attacker controls your wallet — they can transfer all your funds.
For Bitcoin specifically, approximately 25% of all BTC (worth hundreds of billions) sits in addresses with exposed public keys from early transactions when Pay-to-Public-Key (P2PK) was the standard format.
The Harvest Now, Decrypt Later Risk
Even if quantum computers do not exist yet, state-level adversaries are collecting encrypted blockchain data today. When quantum computers arrive, they can retroactively crack every historical transaction. Your past transactions are a future vulnerability.
What About Ethereum 2.0?
Ethereum's roadmap includes a vague mention of "quantum resistance" as a long-term goal, but there is no concrete implementation timeline. Vitalik Buterin has acknowledged the threat but has not committed to a specific post-quantum migration plan. Waiting for Ethereum to upgrade is a gamble.
The Safe Option: Quantum-Resistant Tokens
BMIC uses CRYSTALS-Kyber lattice-based encryption — the NIST-standardized post-quantum algorithm (FIPS 203). This means BMIC wallets, transactions, and staking contracts are protected against both classical and quantum attacks. The security is built into the protocol from the foundation, not bolted on later.