Frequently Asked Questions

Trezor is the world’s first open-source hardware wallet for Bitcoin and cryptocurrency, created by SatoshiLabs in 2014. It is a small physical device that stores your private keys offline, protecting them from hackers, malware, and phishing attacks. Trezor supports over 8,000 digital assets including Bitcoin, Ethereum, Solana, Cardano, and thousands of tokens across multiple blockchain networks. All Trezor firmware is 100% open-source and publicly auditable on GitHub, providing unmatched transparency in the hardware wallet industry.

The Trezor Safe 7 ($249) is the flagship model featuring Bluetooth 5.2 connectivity, dual secure element chips (TROPIC01 + EAL6+), post-quantum cryptography (SLH-DSA-128), Qi2 wireless charging, IP67 water and dust resistance, and NFC tap-to-verify functionality. The Safe 5 ($169) offers a color touchscreen with haptic feedback, a single EAL6+ secure element, and USB-C connectivity. Both models support Shamir Backup, passphrase protection, and 8,000+ assets. The Safe 7 is recommended for users who want the highest level of security and wireless convenience, while the Safe 5 offers excellent security at a more accessible price point.

Quantum-ready means the device implements post-quantum cryptographic algorithms that remain secure even against attacks from quantum computers. The Trezor Safe 7 uses SLH-DSA-128, a stateless hash-based digital signature algorithm standardized by NIST. While current quantum computers are not yet powerful enough to break traditional cryptocurrency encryption, Trezor’s proactive implementation ensures your assets are protected against future quantum threats. This makes Trezor Safe 7 the first consumer hardware wallet to offer quantum-resistant security.

Yes, Trezor is 100% open-source. All firmware, bootloader code, and communication protocols are published on GitHub under open-source licenses. This includes the TROPIC01 secure element design from Tropic Square, making Trezor the only major hardware wallet with a fully transparent security stack from chip to software. Anyone — security researchers, developers, or curious users — can independently audit, verify, and contribute to the Trezor codebase. This radical transparency is a core principle that has earned Trezor the trust of the global cryptocurrency security community.

Trezor supports over 8,000 digital assets including Bitcoin (BTC), Ethereum (ETH), Solana (SOL), Cardano (ADA), Polygon (MATIC), Ripple (XRP), Litecoin (LTC), and thousands of ERC-20, BEP-20, and other network tokens. New assets are regularly added through firmware updates. For the most current list of supported coins, visit the official Trezor website. Through third-party wallet integrations like MetaMask and Exodus, the number of accessible assets expands even further.

Shamir Backup is Trezor’s implementation of the SLIP-39 standard, which uses Shamir’s Secret Sharing algorithm to split your wallet’s recovery seed into multiple independent shares. Instead of relying on a single 12 or 24-word seed phrase that represents a critical single point of failure, you can generate multiple shares (for example, 5 shares) and define a recovery threshold (for example, any 3 shares). Each individual share is useless on its own. You distribute shares across different secure locations, so no single theft, fire, or disaster can compromise your backup. Available on Trezor Safe 5 and Safe 7.

A recovery phrase (also called a seed phrase or mnemonic phrase) is a list of 12, 20, or 24 words generated by your Trezor during initial setup. This phrase is the master backup of all your cryptocurrency accounts and private keys. If your Trezor is lost, stolen, or damaged, you can use this recovery phrase to restore your entire wallet and all its accounts on a new Trezor device. It is critically important to write this phrase down on paper or metal and store it in a secure, offline location. Never share it with anyone, photograph it, or store it digitally.

The passphrase is an optional additional word or phrase (sometimes called the “25th word”) that you add to your recovery seed to create entirely separate hidden wallets. Each unique passphrase generates a different set of accounts and addresses from the same device and recovery seed. This provides plausible deniability — you can have a decoy wallet visible with a small balance, while your main holdings are protected behind a passphrase that only you know. The passphrase is never stored on the device and must be remembered or securely recorded separately from your recovery seed.

Firmware updates are performed through Trezor Suite. When a new firmware version is available, Trezor Suite will display a notification prompting you to update. Click the update button, confirm the installation on your Trezor’s screen, and wait for the process to complete (typically 1-2 minutes). Your device will verify that the firmware is officially signed by SatoshiLabs before installing it. It is recommended to ensure your recovery seed backup is accessible before updating firmware, as a precautionary measure. Firmware updates are important for security patches, bug fixes, and new feature additions.

Yes, the Trezor Safe 7 features Bluetooth 5.2 connectivity for wireless management from mobile devices. The Bluetooth implementation uses end-to-end encrypted communication, and private keys never leave the device during wireless operations. All transaction signing occurs on the hardware wallet’s secure elements, with only signed transaction data transmitted wirelessly. The Safe 5 and Safe 3 models connect via USB-C cable only. For users who prefer not to use Bluetooth, the Safe 7 also includes a USB-C port for wired connections.

Yes, the Trezor Safe 7 carries an IP67 rating, meaning it is completely protected against dust ingress and can withstand submersion in up to 1 meter of fresh water for 30 minutes. This makes it suitable for everyday carry without worrying about accidental spills, rain, or environmental exposure. The Safe 5 and Safe 3 models do not have an official IP rating, so they should be kept dry and protected from moisture.

Yes, Trezor integrates with dozens of popular third-party cryptocurrency wallets and applications. Supported integrations include MetaMask (for Ethereum and EVM chains), Exodus, Electrum (Bitcoin), MyEtherWallet, Wasabi Wallet (privacy-focused Bitcoin), Sparrow Wallet, and many more. These integrations allow you to use your Trezor as a hardware signer while benefiting from the unique features of each wallet application. Your private keys remain securely stored on the Trezor device regardless of which software interface you use to interact with it.