Custodial Blink
Blink manages the relevant balances on your behalf. Its custodial model uses security practices including multi-signature cold storage. You access your wallet through your Blink account, so protecting that account access matters.
Security
Security starts with understanding your wallet.
How your Bitcoin is protected depends on which wallet model you use. This guide explains both, and the habits that keep you safe in either.
Choose how you control your Bitcoin.
Bitcoin's decentralized network and wallet custody are different concepts. Account-based services manage access on your behalf. Self-custody gives you control of the keys and responsibility for recovery.
Non-custodial Blink
Based on Spark. You control the keys, and your 12-word recovery phrase is how you restore access. Blink does not hold it and cannot recover it for you.
Your 12 words are your responsibility.
- Write the words down in order, on paper, and store them somewhere private.
- Never screenshot them or keep them in cloud notes, email or chat.
- Never share them — not even with someone claiming to be Blink support.
- If the phrase is lost and you lose your device, you may lose access to those funds permanently.
Review every payment.
Recipient — is this the right address or invoice?
Amount — sats or dollars, and the right number.
Method — Lightning or on-chain.
Balance — which one you're paying from.
Review payment
- Recipient
- [email protected]
- Amount
- 5,000 sats
- Method
- Lightning
- Balance
- Bitcoin Balance
Confirm payment
Safe use, every day.
Protect against phishing
Be suspicious of messages asking you to send bitcoin, 'verify' your wallet or enter your recovery phrase. Check website addresses carefully.
Protect account access
For custodial Blink, keep the email, phone or login method tied to your account secure and don't share sign-in codes.
Keep software current
Use the download links on this website and install updates when released. The current version is 1.0.4.