HexFence

Address poisoning / Account enforcement

A familiar address.
A different recipient.

Address poisoning puts lookalike addresses into your transaction history. A tiny or zero-value transfer can make the wrong recipient look familiar when you copy an address for your next payment.

HexFence finds poisoning on Ethereum, warns you before you sign, and refuses the lookalike on-chain.

Watch one lookalike payment fail: the guided demo

From observation to enforcement

A warning can be clicked through. The Guard can’t.

Open evidence powers the warning. An on-chain rule makes the final call.

  1. Observe

    Detector

    Reads Ethereum mainnet USDT and USDC transfer logs for address-poisoning patterns.

  2. Publish

    Arkiv evidence

    Publishes open records anyone can re-check against Ethereum, each labelled suspected.

  3. Explore

    Evidence explorer

    Browse suspected records and inspect their linked Ethereum receipts.

  4. Compare

    Address X-Ray

    Read the full recipient in groups of four, with matching and different groups highlighted.

  5. Check

    HexFence Pay verdict

    Checks every recipient in your browser against your approved payees and the public evidence, before you sign.

  6. Enforce

    HexFenceGuard

    Refuses a payment to any different address that shares an approved payee’s fingerprint, directly on your Safe.

Explore, then try

See the evidence. Inspect a payment.

Payment client / Sepolia

Check before you sign.

HexFence Pay brings approved payees, suspected evidence and the Guard’s resemblance rule into the payment flow.

Open HexFence Pay
Try it right now

Open the live preview on our demo Safe: real verdicts in your browser, no wallet needed.

Ready to send? Connect a Sepolia wallet and a Safe with HexFenceGuard enabled.

Public evidence / Ethereum mainnet

Inspect the suspected patterns.

Browse records from the Arkiv publisher, search addresses and inspect the linked Ethereum transactions.

Open evidence explorer
Nothing to install

No wallet, no account, no backend. Your browser reads the records straight from Arkiv.

Check any address privately: the check runs on your own machine.

What you get

Built to stop the wrong payment.

Live on Sepolia, powered by real Ethereum mainnet data.

Public artifacts

Inspect the work yourself.

Each link below is a public record, including the Guard refusing a test payment to an address that resembles your approved payee.

Guard on Sepolia Blockscout 0xA061fB511D69e5c92E50E3BE5c789472d6f19748 Guard refusal on Sepolia 0xa43b0eeef7253281a741deca144e5ddf0c465da9cc6f48d54673a9aa9c0f6d8f Arkiv publisher · Rabdi testnet 0x36141ba063390f0d91Af7a5a9dF8dc1d80D699ecInspect this publisher’s suspected records in the explorer. GitHub repository Source, run instructions and recorded test results.