POST-QUANTUM WALLET HARDENING

Seal your wallet before quantum can read it

Paste an address. Hexlat reads only public chain data, finds every place your key is exposed, and hands you a plain-English plan to harden it. No keys, no connection, no custody.

~25%
of all BTC sits at addresses with exposed public keys
2030–35
NIST window to deprecate today's signature schemes
$0
to scan — the fix costs nothing but a transfer
HOW IT WORKS

Three steps, no risk to your funds

Hexlat never asks for a seed phrase, never connects to your wallet, and never moves anything. It reads what's already public and tells you what to do next.

STEP 01

Paste an address

Drop in any Bitcoin or Ethereum address. Public data only — nothing that could move your funds ever leaves your hands.

STEP 02

See your exposure

Hexlat checks which addresses have revealed their public key on-chain — the thing a future quantum computer would exploit — and flags every broken cell.

STEP 03

Harden it

Get a prioritized, plain-English plan: what to move, where to move it, and which address types keep your key hidden. You make every transaction yourself.

THE THREAT

Why an exposed key matters

Most wallets are safe today. The risk is specific and dateable: once a quantum computer can run Shor's algorithm at scale, any address that has revealed its public key can have its private key derived. Two algorithms, two very different stakes.

breaks it

Shor's → your signature

Solves the math under ECDSA directly. An exposed public key hands over the private key. This is the catastrophic one — and the only defense is to not leave keys exposed.

weakens it

Grover's → the hashing

Halves the effective strength of a hash like SHA-256. Real, but survivable — the network moves to larger keys and carries on. Not the part that threatens your coins.

SEE IT FOR YOURSELF

The threat isn't abstract — watch it work

These run a real quantum algorithm right in your browser, on tiny examples. Grover's shows how a quantum search amplifies the right answer. Shor's shows the period-finding that derives a private key from a public one — the exact mechanism that puts an exposed key at risk.

Grover's search

Watch one answer's probability get pumped up by interference — then fall if you overshoot. The √N speedup, made visible.

P(answer) 0.06

16 items, one marked answer. Classical search needs ~8 checks. Press Step and watch.

Shor's algorithm

Factor 15 the quantum way — by finding the period of a function. The same period-finding cracks the math behind your signature.

Press Run to factor 15 by period-finding.

On a real machine this same step finds the private key behind an exposed public key. Here it's a toy; at scale it's the threat.

WHY TRUST US

You hold the keys. We hold the map.

Hexlat is advisory, not custodial. We show you where the lattice is broken and how to seal it — calmly, exactly, never alarmist. The decisions, and the transactions, are always yours.

No seed phrase, ever No wallet connection Reads public data only We never move funds
GET STARTED

See where your wallet stands

One address, thirty seconds, no signup. Find out if your key is exposed.

Scan a wallet free →