What it means
A small device that keeps a wallet's key offline and signs transactions without exposing it.
It's a popular way to keep large amounts safe, often called cold storage.
How it works
You can export your Defied wallet key and import it elsewhere if you prefer to hold it another way.
Related terms
| Term | What it means |
|---|---|
| Private key | The secret that proves a wallet is yours and signs every payment from it. Whoever has it controls the wallet. |
| Hot wallet | A wallet whose key is used on an internet-connected device, such as an app on your phone. |
| Self-custody | Holding your money yourself, in a wallet only you control, instead of trusting a bank or exchange to hold it. |
This glossary explains terms in general. It isn't investment, tax or legal advice.