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Independent Guidance • Plain-Language Security • We Never Ask for Your Passwords or Recovery Words
25th Word
Part 2 of 25th Word

Crypto secrets: protect your recovery phrase

In crypto, your recovery phrase is the account, and nobody can reset it. Learn how the words work, how to back them up, and how to spot anyone trying to take them.

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For anyone holding crypto: recovery phrases, backups, hardware wallets and the 25th word.

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Metal seed phrase backups

When paper is not enough: steel plates, tiles and what actually survives fire and flood.

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Beginner

Seed phrase vs private key vs public key

A seed phrase creates private keys, private keys create public keys, and addresses come from those. See what each does and what is safe to share.

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Beginner

12 words or 24 words: does length matter?

A 12-word seed phrase is already far beyond guessing, and 24 words adds more margin. Learn the real difference and which matters more for your safety.

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Intermediate

What is BIP39 and how the word list works

BIP39 is the standard that turns random numbers into seed words. Learn how the 2,048-word list works, what the checksum does, and why words were chosen.

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One idea, two kinds of secret
Everyday passwords
Email, bank and shopping logins. Can usually be reset.
The passphrase
Many random words, used in both worlds. The bridge between the two.
Crypto secrets
Recovery phrases and private keys. Cannot be reset.
The same habits protect both halves: long random secrets, kept private, with a backup. A passphrase is where they meet.

Also on 25th Word: Everyday passwords. For anyone with an email or bank login. No technical or crypto knowledge needed.