Skip to content
Vol. 1 · Ed. 2026
CyberGlossary
Entry № 1170

Trezor Wallet

What is Trezor Wallet?

Trezor WalletAn open-source hardware wallet line by SatoshiLabs that stores cryptocurrency seeds offline and signs transactions through a built-in screen and buttons.


Trezor Wallet is the family of hardware wallets developed by Czech firm SatoshiLabs, including Trezor One, Model T, Safe 3, and Safe 5. The devices are notable for their fully open-source firmware and reference implementation of the BIP-39 mnemonic standard, which SatoshiLabs co-authored. Older Trezor models without a secure element have been shown to be vulnerable to physical fault-injection attacks that can extract the seed from an unlocked device, so SatoshiLabs added a certified secure element to the Safe series. Trezor remains popular with users who prioritize auditability and transparency over closed proprietary chips, often combined with passphrases and multisig for additional defence in depth.

Examples

  1. 01

    A Trezor Safe 5 protecting long-term Bitcoin and Ethereum holdings with a passphrase-protected hidden wallet.

  2. 02

    Researchers extracting the seed from an older Trezor One via voltage glitching, motivating the move to a secure-element design.

Frequently asked questions

What is Trezor Wallet?

An open-source hardware wallet line by SatoshiLabs that stores cryptocurrency seeds offline and signs transactions through a built-in screen and buttons. It belongs to the Web3 & Blockchain category of cybersecurity.

What does Trezor Wallet mean?

An open-source hardware wallet line by SatoshiLabs that stores cryptocurrency seeds offline and signs transactions through a built-in screen and buttons.

How does Trezor Wallet work?

Trezor Wallet is the family of hardware wallets developed by Czech firm SatoshiLabs, including Trezor One, Model T, Safe 3, and Safe 5. The devices are notable for their fully open-source firmware and reference implementation of the BIP-39 mnemonic standard, which SatoshiLabs co-authored. Older Trezor models without a secure element have been shown to be vulnerable to physical fault-injection attacks that can extract the seed from an unlocked device, so SatoshiLabs added a certified secure element to the Safe series. Trezor remains popular with users who prioritize auditability and transparency over closed proprietary chips, often combined with passphrases and multisig for additional defence in depth.

How do you defend against Trezor Wallet?

Defences for Trezor Wallet typically combine technical controls and operational practices, as detailed in the full definition above.

What are other names for Trezor Wallet?

Common alternative names include: Trezor One, Trezor Model T, Trezor Safe.

Related terms