Trezor.io/start — Official Start Page for Trezor

The essence of self-custody revolves around the principle of maintaining complete, sovereign control over your private keys. The Trezor device is engineered from the ground up to be the most secure vault for these keys, ensuring that they never leave the isolated, secure chip environment. Understanding the cryptographic foundations of this process is paramount. Every transaction signed by the Trezor happens offline, protecting the signing process from any network-level or software-level vulnerabilities that may exist on the connected computer. This hardware isolation provides an essential layer of defense against sophisticated malware, phishing attacks, and man-in-the-middle exploits that frequently target software wallets. The user interface, both on the device screen and the accompanying software, is designed for maximum clarity and confirmation, ensuring that the user must physically approve critical actions, such as sending funds or confirming an address. This multi-factor confirmation process is a cornerstone of the Trezor security model. Furthermore, the firmware undergoes rigorous, continuous auditing by independent security researchers and the wider cryptographic community. This commitment to open-source scrutiny is what differentiates truly secure hardware from proprietary, closed-source solutions, fostering trust through transparency. Users are encouraged to verify the device's authenticity upon first use and to only interact with the official Trezor Suite application downloaded directly from the official website. Neglecting these foundational steps compromises the entire security chain, turning a robust piece of hardware into a potential liability. The recovery phrase, or seed, is the ultimate backup, a master key derived using BIP39 standards, which must be stored in a resilient, non-digital format. The physical security of this written backup is as critical as the cryptographic security of the device itself. Loss of the device can be mitigated by this seed, but loss of the seed means permanent loss of funds, underscoring the severity of its protection. The ecosystem extends beyond simple storage; it includes advanced features like Shamir Backup, CoinJoin, and integration with third-party decentralized applications (dApps), expanding utility without sacrificing the core security premise. These advanced features are modular, allowing users to gradually adopt complex security measures as their comfort and holdings grow. The long-term vision is a world where digital asset ownership is simple, accessible, and fundamentally secure, a vision that Trezor strives to realize through continuous innovation and an unwavering focus on user protection and privacy. The integration with various blockchain networks is constantly expanding, providing support for an ever-growing list of cryptocurrencies and digital tokens, all managed from the single, unified interface of the Trezor Suite.