Independent educational guides on mobile Bitcoin security. Understand seed phrases, passphrases, self-custody, and crypto threat prevention — all in plain English.
Browse Guides ↓Learn how BIP39 seed phrases work. Proper backup strategies, hardware vs software storage, and how to protect your 12 or 24 words from theft and loss.
A BIP39 passphrase adds an extra security layer on top of your seed. Understand how the "13th word" protects your wallet even if someone finds your seed.
Stay safe on mobile with practical tips for crypto self-custody, threat detection, app permissions, and avoiding common mobile attack vectors.
Use non-custodial wallets where you control the keys. Open-source wallets with Tor support provide the strongest privacy guarantees.
Use pen and paper only — never store seeds digitally. Keep multiple copies in separate, secure physical locations. Test your backup before funding.
Create a strong, memorable passphrase. Store it separately from your seed phrase. A passphrase generates an entirely different wallet — critical for defense in depth.
Tor hides your IP address. Privacy Protocol breaks the transaction graph. Together they provide the strongest on-chain privacy available today.