Store only the bitcoin you need for routine spending in an internet-connected wallet, and keep savings in a cold-storage setup you can recover. Protect the recovery phrase offline, verify every transaction, and make a tested plan for device loss and inheritance. In self-custody, you control the keys—and are responsible for keeping both the funds and their recovery information safe.
What self-custody means for your security
In a self-custody wallet, you control the private keys that authorize spending. That removes reliance on a custodian to approve access, but it also means there is no central authority that can restore a wallet if you permanently lose both access and recovery information. Bitcoin.org explains the risks of loss and relying on others in its overview of things to know about Bitcoin.
Build your setup around three separate concerns: how often you spend, how well your keys are isolated from connected devices, and whether you can recover the wallet if a device fails. There is no universal balance threshold or wallet type that is safest for everyone; the right choice depends on your transaction frequency, technical comfort, and ability to protect backups.
Choose a wallet for spending or savings
| Setup | Best suited to | Main security trade-off | Recovery and complexity |
|---|---|---|---|
| Hot wallet on a phone or computer | Routine payments and convenient access | Keys are exposed to risks associated with internet-connected devices and malware. | Usually straightforward to use, but recovery still depends on a secure backup. |
| Hardware wallet | Savings that do not need frequent access | Keeps keys offline, reducing exposure to computer vulnerabilities; it does not remove the need to protect the device and backup. | Requires careful setup and a valid recovery backup if the device is lost or damaged. |
| Offline-computer signing | Technically capable users seeking to keep signing keys off connected devices | A compromised connected computer has less ability to spend funds, but removable media and transaction handling introduce risks. | More operationally complex; users must correctly create, transfer, sign, and broadcast transactions. |
| Multi-signature wallet | Users who want multiple independent approvals to spend | Can reduce reliance on one key or location, but does not eliminate operational mistakes. | Recovery and coordination require planning; it may be difficult for a novice to manage. |
Bitcoin.org recommends keeping only small amounts on internet-connected devices for everyday use and using offline storage for savings. This is a qualitative guideline, not a prescribed percentage or dollar amount. Many people use a hot wallet for spending alongside a separate cold-storage setup for savings. See Bitcoin.org’s wallet security guidance and Bitcoin FAQ.
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Set up a recovery backup you can protect
Keep the recovery phrase private and offline
A recovery phrase—also called a seed phrase or mnemonic—is a sequence of words that can restore a wallet. Anyone who gets the phrase may be able to access the corresponding bitcoin, so treat it as a secret that controls the funds. Bitcoin.org defines a recovery phrase and cautions that it should not be shared.
- Write the phrase down during the wallet’s setup process and store it somewhere secure and private.
- Do not save it in a photo library, cloud drive, email, or message thread. Bitcoin.org advises against photos and cloud storage in its FAQ guidance on wallet backups.
- Never enter it because a stranger, website, or unsolicited support message tells you to. Legitimate support should not need your seed phrase or private key.
- Consider durable physical backup media and secure locations. A metal backup plate is one possible category, not a requirement; it may help protect against some physical damage but does not stop someone from discovering or stealing the phrase.
Plan for damage, theft, and more than one location
A single backup location can be a point of failure if it is destroyed, lost, or inaccessible. Bitcoin.org recommends secure backups in more than one physical location and durable storage media. Balance resilience against the added risk of creating more copies that could be found or stolen.
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Do not assume a recovery phrase preserves everything in every wallet. Bitcoin.org notes that many modern deterministic wallets can be restored from a phrase, but advises checking the chosen wallet’s backup method. A phrase may not preserve labels, settings, all wallet metadata, or a nonstandard recovery configuration. Bitcoin Core’s backup guidance explains that wallet-file backups can preserve metadata such as labels and that certain wallet changes may require a new backup. Follow the current instructions for your specific wallet and understand what each backup restores.
Protect encrypted backups and passwords
If you keep a wallet backup on a network-connected device, Bitcoin.org recommends encrypting it, while warning that connected devices remain vulnerable to malicious software. Encryption is not a substitute for offline phrase protection.
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A strong password can help protect an encrypted wallet or device from some forms of access, but it cannot prevent keylogging malware. Choose a password you can reliably recover when needed: Bitcoin.org warns that forgetting it can lead to permanent loss and that Bitcoin offers few password-recovery options. Keep the password-recovery method secure and separate enough that one incident does not expose both the password and wallet backup.
Prevent theft and irreversible sending mistakes
Verify recipients before sending
Bitcoin transactions are irreversible. Before confirming a payment, check the full destination address against the intended recipient—not just the first or last characters. Clipboard malware can replace a copied address with one controlled by an attacker. Bitcoin.org covers transaction finality and related risks in its Bitcoin user guidance.
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Treat unsolicited help and recovery offers as hostile
Do not share your recovery phrase or private key with anyone claiming to be support, and do not grant a stranger remote access to your device. Bitcoin.org’s scam guidance warns that guaranteed wallet-recovery offers are scams and that legitimate support will not ask for your seed phrase or private key.
Buy and initialize hardware wallets carefully
Counterfeit hardware wallets may arrive with a seed phrase already known to an attacker or modified firmware. Buy from the manufacturer or an authorized reseller, check the packaging, and let the device generate a fresh seed during setup. Never load funds onto a device with a prewritten seed, and never share your phrase with someone who says they need to verify or recover the wallet. Bitcoin.org’s scam advice describes these risks. Its hardware-wallet directory includes examples such as the BitBox02, but a listing is not a product test or endorsement; verify current Bitcoin support, security documentation, backup procedures, availability, and seller authorization before choosing a model.
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Keep software current
Update wallet software and the phone or computer that you use with it. Updates can include security and stability fixes, but they do not replace backups or protect against every kind of malware. Bitcoin.org includes updates among its wallet security recommendations.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Make recovery possible if you cannot act
Know how to restore your own wallet before you need to do it under pressure. Also decide how a trusted person could locate the necessary instructions and backups if you die or become unable to manage your funds. Bitcoin.org warns that funds may become inaccessible to heirs if nobody knows where wallet backups are kept; Bitcoin Core also discusses backup and inheritance concerns in its wallet backup guidance.
Leave enough information to identify the wallet and explain the recovery process without exposing the phrase during ordinary access. Consider how the person would learn where the backup is and what other information the chosen wallet requires. For legal arrangements, requirements vary by jurisdiction; the wallet guidance does not establish a universal estate-planning method.
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