Secure initialization: the foundation of trezor start
The moment you complete your trezor start matters more than most realize. Proper initialization prevents many attack vectors: counterfeit devices, compromised firmware, and weak operational security. Treat the first run as a security-critical operation.
PIN & Passphrase
Choose a strong PIN and enable passphrase only if you understand it. The passphrase functions as a 25th word and creates a hidden wallet — powerful, but irreversible if forgotten. Enter PINs directly on the device when prompted; Trezor® randomizes digits to protect against screen loggers.
Seed backup strategy
Write your recovery seed offline. Paper is simple but vulnerable to elements; metal backups resist fire and water. Consider geographic redundancy (store copies in separate secure locations). Avoid storing seeds on phones, cloud storage, or photos.
Firmware & software hygiene
Always update firmware via official Trezor channels. Use the Trezor Suite or official clients. Keep your host machine clean — use trusted operating systems and consider a dedicated device for large transactions. Verify update signatures where available.
Operational Security (OpSec)
- Limit who knows about your wallet and holdings.
- Verify addresses on the device screen before signing transactions.
- Use small test transfers for critical operations.
Security guidance evolves — keep informed through official channels and professional resources. A strong trezor start plus disciplined OpSec is the safest path for custodial independence.