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Home/Guides/Crypto Wallet Guide: From Backing Up Private Keys to Inheritance Planning

Crypto Wallet Guide: From Backing Up Private Keys to Inheritance Planning

TimeWill Editorial · Updated 2026-06-24

TL;DR

The security core of a crypto wallet is the seed phrase and private key: back them up in multiple locations (paper + encrypted vault), and never upload a private key to cloud storage or chat apps. Common wallets like MetaMask and TokenPocket both recover an account through a 12- or 24-word seed phrase. For inheritance planning: let your family access the seed phrase when you lose contact but keep it unexposed while you are alive. An encrypted vault plus a trusted-contact trigger mechanism is recommended to avoid the risks of plaintext storage or a one-time handover.

This article is for informational purposes only regarding digital legacy and account handover, and does not constitute legal advice. Requirements for wills, inheritance, notarization, and account authorization vary by region. For important arrangements, please consult a qualified attorney or the relevant authority.

Most crypto holders have never seriously asked themselves: if something happens to me, who can access my coins? Exchange accounts have customer service to contact (a lengthy process), but on-chain wallets — without the private key, the assets are lost forever. Satoshi Nakamoto's million-plus BTC have never moved, most likely because the private key was lost. This article is written for crypto users themselves, and for their families.

How to Back Up Correctly

The seed phrase is everything — 12 or 24 English words. Backup principle: store offline. Do not screenshot it, do not copy it into a cloud note, do not send it over WeChat. Write it on paper and keep it somewhere secure. But paper can be lost, soaked, or burned — so back it up twice: paper plus encrypted digital storage. TimeWill's password vault is AES-256 encrypted, far safer than a cloud note for storing a seed phrase.

Wallet Types and Backup Methods

  • MetaMask — Settings → Security & Privacy → Reveal Secret Recovery Phrase → enter password → write down the 12-word seed phrase. The private key is a 64-character hexadecimal string
  • TokenPocket — My → Wallet Management → Export Private Key / Seed Phrase. Supports multi-chain wallets; each chain has its own private key
  • Ledger / Trezor Hardware Wallet — The seed phrase is given during initialization. The private key never leaves the hardware. When handing over, give the device together with the PIN
  • Exchanges (Binance / OKX) — Not a wallet. Account + password + GA code + bound phone — all four are required. Encrypt and store the complete set

How Family Operates After Death — One Guide Is Enough

Most family members do not understand blockchain. You need to write a detailed operating guide in TimeWill: step one, which wallet to install; step two, how to import the seed phrase (include screenshots); step three, who to ask for help with transfers (recommend a reliable crypto-savvy friend's WeChat). Do not expect your family to search Google — they will not even know what to type.

Seed Phrase vs Private Key — In Simple Terms

A private key is the key to a single address; a seed phrase is the key to all addresses. One wallet may hold coins across multiple chains — BTC, ETH, USDT — and the seed phrase can recover all of them. So storing the seed phrase is enough (storing one seed phrase is equivalent to storing the entire wallet). The private key is generated from the seed phrase and generally does not need a separate backup.

FAQ

Q: Is writing the seed phrase on paper secure enough?

Paper backup is safe from network risk, but vulnerable to loss, fire, water damage, or being found. Keep at least two copies in separate locations (such as home and a bank safe deposit box). Do not store seed phrases in cloud drives, email, or chat apps.

Q: If I uninstall MetaMask, can the seed phrase still recover the wallet?

Yes. MetaMask wallet data lives in the seed behind the seed phrase — reinstalling MetaMask or importing into any BIP-39-compatible wallet (such as TrustWallet or imToken) recovers the same addresses and assets. This is exactly why the seed phrase must be kept safe.

Q: Should I give my family a hardware (cold) wallet?

The hardware device alone is useless; what matters is the recovery seed phrase. Store the device location and the recovery seed phrase separately in an encrypted vault so your family can find the device and the seed — only together can they take over the assets.

References & Notes

  • Civil Code of the People's Republic of China, Article 127 (Protection of Data and Network Virtual Property)

Related Guides

Crypto InheritanceEncryption & PrivacyPassword Vault

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