> For the complete documentation index, see [llms.txt](https://help.tokenpocket.pro/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tokenpocket.pro/en/blockchain-basics/cold-wallet.md).

# What is a cold wallet

A cold wallet is a wallet management method that stores private keys or seed phrases in an offline environment. Because a cold wallet does not directly connect to the internet, it can effectively reduce the risk of private keys being stolen through cyberattacks, malware, phishing websites, or remote intrusions.

In a blockchain wallet, what truly controls the assets is the private key or seed phrase, not the wallet app itself. The core purpose of a cold wallet is to keep private keys as far away from online environments as possible, thereby improving the security of asset management.

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### How a Cold Wallet Works

The core principle of a cold wallet is:

**Private keys are stored offline, transactions are signed offline, and online devices are only responsible for broadcasting transactions.**

Simply put, a cold wallet usually does not directly access the internet. When a user needs to initiate an on-chain operation such as a transfer or authorization, the transaction information can first be generated on an online device, and then passed to the cold wallet device for signing through QR code interaction.

After the signing is completed, the online device broadcasts the signed transaction to the blockchain network.

Throughout this process, the private key is always stored on the offline device or in an offline environment and is never exposed to the online device.

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### Why Use a Cold Wallet?

A cold wallet is an asset management method that places greater emphasis on security. By storing private keys or seed phrases offline, it reduces the risk of private keys being stolen through cyberattacks or malicious programs.

For long-term holdings or larger amounts of crypto assets, a cold wallet is a more prudent choice. Users can also combine TokenPocket’s multi-chain asset management capabilities with hardware wallets and other security solutions to strike a balance between convenience and security.

Whether using a cold wallet or a hot wallet, the most important principle is always:

**Protect your seed phrase and private key, and carefully confirm every signature and transaction.**