Private key: definition and meaning
A private key is the secret that proves ownership of crypto in a wallet. Whoever has it controls the funds.
Why it matters
If you lose it or someone steals it, funds usually cannot be recovered.
Related terms
- Seed phrase
A seed phrase is a list of 12 or 24 words that can restore a wallet and its private keys.… - Cold wallet
A cold wallet keeps private keys offline, for example on a hardware device or paper backup…
Guides that explain more
Educational content only, not financial advice.