Safety · Beginner lesson · about 2 minutes
Private keys
The secret authority that can authorize a transaction.
The short answer
A private key proves control over an address. A recovery phrase can recreate multiple keys and must be protected like the assets themselves.
In plain English
A private key proves control over an address. A recovery phrase can recreate multiple keys and must be protected like the assets themselves.
The details differ by network and service, so use the linked sources and the project’s own documentation when a decision depends on current behavior.
What can go wrong
Read this before you act.
Anyone who gets the key or phrase may be able to move the assets. There is usually no password-reset desk.
Check your understanding
A few questions. Not a test.
Pick an answer to see why it's right or wrong. There's no score to unlock.
Sources and corrections
This lesson is a starting point. The two sites below are good general places to learn more. Please tell us if something needs fixing.