Every Solana address is its own ed25519 public key. A large enough quantum computer running Shor's algorithm could work backwards from it to the private key. Paste a wallet to see what it exposes.

No quantum computer can do this today; "Q-Day" is the day one can. Quantum ID binds a post-quantum ML-DSA-65 key to your wallet so your identity and your coins' origin can still be proven after it. It does not make the wallet itself quantum-safe. Nothing is signed or sent by this scan.