# Crypto address book

## Definition

A crypto address book is a user-maintained mapping of labels or contacts to blockchain addresses intended to reduce repeated manual entry.

## What it means in practice

Address books can improve convenience but can become dangerous if an old, compromised or wrong-network address is trusted without verification.

## How this concept appears in Terenval Wallet

Whether an address is stored inside or outside Terenval, users should still verify the current destination and network before signing.

**Important:** A saved label is not proof that the underlying address still belongs to the intended recipient.

**[Install Terenval Wallet](https://wallet.terenval.com/?lang=en)**

## Related terms

- [wallet address](https://wallet.terenval.com/glossary/wallet-address/)
- [transaction verification](https://wallet.terenval.com/glossary/transaction-verification/)
- [address poisoning](https://wallet.terenval.com/glossary/address-poisoning/)
- [wrong network transfer](https://wallet.terenval.com/glossary/wrong-network-transfer/)
- [Send crypto](https://wallet.terenval.com/glossary/send-crypto/)

## Related Terenval Answers

- [What Is a Crypto Wallet and What Does It Actually Store?](https://wallet.terenval.com/answers/what-is-a-crypto-wallet-and-what-does-it-store/)
- [Can One Crypto Wallet Manage Multiple Blockchains?](https://wallet.terenval.com/answers/can-one-crypto-wallet-manage-multiple-blockchains/)
- [How to Send Crypto Safely Between Wallets](https://wallet.terenval.com/answers/how-to-send-crypto-safely-between-wallets/)

Official page: https://wallet.terenval.com/glossary/address-book/