Is it safe to store my seed phrase in a password manager?

It's better than nothing, but it concentrates risk. If your password manager is breached, phished, or your master password is keylogged, an attacker gets every wallet at once. Use a physical backup as the primary, with a password manager as at most a secondary.

Can I memorize my seed phrase instead of writing it down?

Possible, but a bad idea on its own. Memory degrades, and you cannot pass it to heirs. Use the 'brain wallet' as a tertiary backup at most, never as the only backup.

What is a BIP39 passphrase and should I use one?

A passphrase is an extra word or sentence that, combined with your seed, derives a completely separate wallet. It defends against stolen backups and coercion. Use one once you are comfortable managing the additional responsibility — losing it is unrecoverable.

How do I know if my hardware wallet has been tampered with?

Buy direct from the manufacturer, never used. Verify packaging seals on arrival. Set up the wallet yourself and write down the seed it generates — if a wallet ever shows you a pre-existing seed phrase, it is compromised.

Should I split my seed phrase into pieces?

Not by hand. Splitting words 1-6 in one place and 7-12 in another reduces brute-force complexity dramatically. If you want to split, use Shamir Backup (SLIP39), which is mathematically designed for it.

What happens to my crypto if I die?

Without an inheritance plan, it is gone. The simplest plan is a sealed letter held by your lawyer or executor explaining where the backups live and how to use them — not the seed itself. For larger estates, services like Casa Inheritance handle this with multi-sig.

Seed Phrase Security Guide | Crypto Market Watch

A complete, practical guide to seed phrase security. Learn how to back up your recovery phrase, where to store it, what threats to defend against, and how to use Shamir Backup, passphrases, and metal plates correctly.

Overview

This article is part of Crypto Market Watch's free crypto learning library. It explains the topic in plain language so beginners and experienced users alike can quickly understand the concept and how it applies to real cryptocurrency markets.

Continue Learning

For related ideas, browse the crypto glossary or return to the full learn library.