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Security

Updated October 2026

Zcan security

Security

How Zcan protects you, what has been reviewed, and how to report a problem. Each practice below is checked against the code that runs this site.

How Zcan protects you

9 practices
  • No accounts

    There's nothing to sign up for and no password for Zcan to lose. Your swap history, alerts and settings stay in this browser.

  • Zcan never holds your funds

    Swaps run through NEAR Intents 1Click. The deposit address you pay comes from 1Click, and the payout goes to the address you entered.

  • Your wallet signs, not Zcan

    Paying from a wallet asks your own wallet to approve the transfer. Zcan never sees your keys or seed phrase, and it re-checks the order with 1Click right before your wallet opens.

  • Tools run on your device

    The link, photo and document cleaners, clipboard guard, fingerprint test and address checker work in your browser. The cleaners count their own network requests so you can see it.

  • A k-anonymous password check

    Your password is hashed in your browser. Only the first 5 characters of its SHA-1 hash go to Have I Been Pwned, and the match happens on your device.

  • Local history, encrypted backups

    History lives only in this browser. A backup is a file you download. The encrypted kind uses AES-256-GCM with a key from your passphrase (PBKDF2, 600,000 rounds).

  • Agents can only search

    An agent's only tool is a web search. It can't sign in, fill in forms or contact anyone. What you type is fenced off and treated as data, never as instructions.

  • Training data is opt-in and scrubbed

    Nothing from an agent run is kept unless you share it, and you can read the exact text first. Details you typed, emails, phone numbers, IPs and crypto addresses are replaced. You can withdraw a share later.

  • No ads or analytics

    No ad networks, analytics or tracking scripts. Fonts are served by Zcan itself, and wallet connections run with Reown's analytics switched off.

Latest review

October 2026

In October 2026, Zcan completed an internal security review of these parts of the site:

  • Wallet pay
  • The swap flow
  • Payment requests
  • The site's API routes

The Zcan team carried it out with the help of AI tools.

This is not an independent third-party audit. Zcan intends to commission one.

Report a vulnerability

Policy in English

Found a security problem? Please tell us privately first.

Email info@zcan.dev

The policy below is kept in English.

How to report

Email info@zcan.dev with the subject line “Security”. Please include:

  • The affected page, URL or API route.
  • Steps to reproduce the problem, and what you expected to happen.
  • The impact: what an attacker could do with it.
  • Any proof-of-concept, screenshots or logs, with no real user data in them.
  • How we can reach you for follow-up questions.

In scope

  • The website at www.zcan.dev and zcan.dev.
  • Its API routes under /api/.

Out of scope

  • Third-party services Zcan relies on, such as NEAR Intents (1Click), Coinbase, CoinGecko, Blockchair, Reown (WalletConnect), the AI provider and wallet apps. Please report those to the service directly.
  • Social engineering or phishing of Zcan’s team or users.
  • Volumetric denial of service and load testing.

Please

  • Don’t access, change or delete other people’s data. If you reach any by accident, stop and tell us.
  • Use only your own addresses and small test amounts.
  • Don’t degrade the service for anyone else.
  • Give us reasonable time to fix the problem before you disclose it publicly. We’ll agree on a date with you.

Safe harbor

If you act in good faith and follow this policy, we will treat your research as authorized, we won’t take legal action against you for it, and we won’t ask anyone else to. If you’re unsure whether something is allowed, email us before you try it.

What to expect

We aim to acknowledge reports within 3 business days. We’ll keep you posted while we look into it and tell you when it’s fixed. If you’d like, we’ll credit you once the fix is live.

There’s no paid bug bounty program yet.

Machine-readable contact

Contact details are also published at /.well-known/security.txt (RFC 9116).

Dependency monitoring

Dependabot

Zcan's code dependencies are watched by GitHub Dependabot. Security alerts are on, fixes for known vulnerabilities open as pull requests automatically, and other updates are checked weekly.

Your part

4 habits
  1. Check that the address bar says https://www.zcan.dev before you swap or pay.
  2. Before you send, check that the deposit address in your wallet matches the one Zcan shows.
  3. Use a shielded unified address (u1…) for ZEC payouts.
  4. Never share your seed phrase. Zcan will never ask for it, and anyone who does is trying to take your funds.

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