Trezor

What is Trezor?

Trezor is a hardware wallet a physical device that generates and stores private keys in an isolated environment that never connects directly to the internet. It is one of the most widely used cold storage solutions for retail crypto users.

How does Trezor work?

1. During setup, Trezor generates a 24-word recovery seed displayed only on the device screen.
2. You write the seed down offline and store it securely.
3. When signing a transaction, Trezor displays the details on its own screen.
4. You confirm by pressing the physical button the signature is generated internally and never exposes the key.

Why does Trezor matter?

Keeping private keys on an internet-connected device exposes them to malware and remote attacks. Trezor eliminates this risk by keeping keys air-gapped from the internet entirely.

Key features of Trezor

• Private keys never leave the device
• Physical button confirmation prevents unauthorized transactions
• Open-source firmware auditable by anyone
• 24-word recovery seed enables full restoration on any compatible device

Examples of Trezor

An investor storing 10 BTC long-term uses a Trezor to eliminate exchange hack risk. A trader connects Trezor to MetaMask periodically to sign transactions, keeping keys offline between sessions.