Trézór® Bridge | Introducing the New Trézór App

Trézór® Bridge: The Invisible Secure Tunnel for Your Hardware Wallet

(Official Local Client | Open-Source Certified)

Why Trézór® Bridge Exists

✅ Critical Security Function

Enables 100% offline communication between Trézór® devices and browsers
Replaces risky browser extensions with local, non-internet-facing service
Processes transactions WITHOUT exposing private keys

✅ Technical Architecture

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Browser (Chrome/Firefox/Edge) ↔ Trézór® Bridge (localhost:21325) ↔ USB ↔ Trézór Device®

Data never leaves your machine. Zero cloud dependency.

Installation Protocol

Step 1: Download

Only from official Trézór® site
Verify checksum: SHA-256: 7d4fe5c...b08a (v2.4.1)

Step 2: Install

OSInstructionsWindows®Run .exe → Allow firewall accessmacOS®Drag to Applications → Authorize in System PreferencesLinuxsudo apt install ./trézór-bridge.deb

Step 3: Verify

Connect Trézór®
Visit Suite Web
Check status: ✅ "Bridge running" notification ✅ Device detected

Security Advantages vs. Extensions

FeatureTrézór® BridgeBrowser ExtensionsInternet AccessNone (local only)Full network permissionsKey ExposureImpossiblePhishing riskUpdatesAutomatic/silentManualOS SupportWin/macOS/LinuxChrome/Firefox only

5 Essential FAQs

Q1: Is Bridge mandatory?

Yes for web interfaces like Trézór Suite Web. Desktop Suite connects directly.

Q2: Can hackers access my crypto through Bridge?

Impossible. Bridge only passes unsigned transaction data to your device for physical verification.

Q3: Why does Bridge show "Not connected"?

Try different USB port/cable
Reinstall Bridge → Restart browser
Disable VPN/firewall temporarily

Q4: Does Bridge work with MetaMask?

Yes! Select "Hardware Wallet" in MetaMask → Choose Trézór® → Follow device prompts.

Q5: How to verify Bridge authenticity?

Download only from trézór.io/start
Check digital signature (Windows)
Match SHA-256 hash from GitHub

Q6: Does Bridge collect data?

Never. It’s open-source (view code) with zero telemetry.

Troubleshooting Guide

SymptomSolution"Bridge not detected"sudo systemctl restart trézór-bridge (Linux)USB connection failsUse original cable → Test on another PCOutdated versionDownload latest → Reinstall"Service unavailable"Disable conflicting apps (Ledger Live, antivirus)

🔐 "Trézór® Bridge is the only way to achieve true air-gapped security with web interfaces." — Trézór® Security Team, White Paper v3.8

Advanced Use Cases

U2F Authentication: Secure logins for Google/GitHub
GPG Decryption: Sign emails/files offline
SSH Key Management: Access servers via trézór-agent CLI

Security Certificate

Complete to earn your Bridge Master Badge: ☑️ Installed from official source ☑️ Verified SHA-256 hash ☑️ Tested with Trézór Suite Web ☑️ Enabled U2F authentication

Get Started: → Download Trézór® Bridge → Setup Video Guide → Support

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